8 best computer mouse trackballs

A computer mouse trackball is an input device used to control the movement of a cursor on a computer screen. Unlike traditional mice that use optical or laser sensors to detect movement on a surface, trackball mice operate by rolling a ball with the user's fingers or thumb. The movement of the ball is translated into cursor movement on the screen. Here are some key points about trackball mice:

  1. Design: Trackball mice typically consist of a stationary base with a spherical ball protruding from the top. Users can roll or spin the ball with their fingers or thumb to move the cursor. Some trackballs are thumb-operated, while others are finger-operated.

  2. Advantages:

    • Precision: Trackball mice are known for their precision, making them popular among professionals like graphic designers and CAD users.
    • Ergonomics: They can be more ergonomic than traditional mice since they don't require users to move their entire hand.
    • Space-Saving: Trackball mice are often used in situations where space is limited, such as in industrial or medical applications.
  3. Applications:

    • CAD and Design: Trackballs are favored by professionals in fields like computer-aided design (CAD) due to their precise control.
    • Industrial and Medical: Trackball mice are used in industrial and medical settings because they can be operated with dirty or gloved hands, unlike traditional mice.
    • Gaming: Some gamers prefer trackball mice for their precision in first-person shooter games.
  4. Variations:

    • Finger-Operated Trackballs: These are controlled by the fingers and are typically smaller in size.
    • Thumb-Operated Trackballs: These are controlled using the thumb and are often more compact and portable.
    • Ambidextrous Trackballs: Some trackballs are designed for use with either hand.
  5. Cleaning and Maintenance: Trackball mice require less cleaning than traditional mice since the ball is enclosed and not in direct contact with the surface. However, the ball and sensors may still need occasional cleaning to ensure smooth operation.

  6. Historical Significance: Trackball technology has been used in various applications for decades.Early trackballs were used in military and industrial computers before becoming popular in personal computer setups.

  7. Modern Usage: While traditional mice and touchpads are more common in everyday computing, trackball mice are still preferred by some users for their unique advantages in specific tasks.

In summary, a computer mouse trackball is an input device that offers precise cursor control through the manipulation of a ball, making it useful in various professional and specialized applications where accuracy and ergonomic design are crucial.

Below you can find our editor's choice of the best computer mouse trackballs on the market
  

Oral-B 1000 CrossAction Electric Toothbrush, Black, Powered by Braun and Sensitive Gum Care Electric Toothbrush Replacement Brush Heads Refill, 3 Count

Oral-B

Based on 1 reviews Check latest price
  • Clinically proven superior 3D cleaning oscillates and pulsates to break up and remove up to 300 percentage more plaque along the gum line than a regular manual toothbrush
  • The pressure sensor stops the pulsation movement if you brush too hard and the in handle timer helps you brush for a dentist recommended 2 minutes
  • 1 Mode, Daily Clean, rotates to break up and sweep away plaque
  • Package includes 3 Genuine Oral-B Sensitive Gum Care Electric Toothbrush Replacement Brush Head Refills
  • Extra soft bristles for sensitive gums provide a superior and gentle clean vs. a regular manual toothbrush
  • Round brush head is inspired by dental professional tools for a tooth-by-tooth clean, with specially engineered bristles

User questions & answers

Question: Is it Rechargeable
Answer: Yes it is. Comes with a charging station.
Question: Is itv electric or battery powered
Answer: Rechargeable
Question: Electric brush with water pick all in one
Answer: No
Question: Does this come with a stand that has room for 2 brush heads
Answer: No it’s comes only with the stand for machine

Day Green Smoothie Cleanse

Simon & Schuster

Based on 24 reviews Check latest price

NYX PROFESSIONAL MAKEUP Slim Lip Pencil, Peakaboo Neutral

NYX PROFESSIONAL MAKEUP

Based on 9 reviews Check latest price

Product description

Slim, trim, but never prim our lip pencils come in a variety of dashing shades - from auburn to orange and traffic-stopping Red. The buttery long-wearing lip liner formula goes on easily and resists bleeding.

  • LIP LINER IN ALL SHADES: NYX Professional Makeup Slim Lip Pencil natural lip liner pencils come in a variety of dashing shades from auburn to orange and traffic-stopping red to line and define your lips
  • LONG-WEARING LIP LINER PENCIL: This buttery soft, long-wearing lip pencil formula goes on easily and resists bleeding. Glide it on for an instant pump to your pout accompanying your favorite NYX Professional Makeup lipsticks and lip glosses
  • LIP PRODUCTS FOR THE PERFECT POUT: Doll your lips in plush, creamy, glossy perfection! Try our complete line of lip products including lipstick, lip liner, lip gloss, lip cream, lip liner, & butter gloss
  • CRUELTY FREE COSMETICS: We believe animals belong in our arms—not in a lab. All of our makeup is certified & acknowledged by PETA as a cruelty-free brand. We don't test any of our products on animals
  • DISCOVER NYX PROFESSIONAL MAKEUP: Try all of our professional makeup & beauty products today, from eyeshadow, eyeliner, mascara & false lashes to lipstick, foundation, primer, blush, bronzer, brushes & more

User questions & answers

Question: Lip liner color for brown skin
Answer: This is a nice neutral brown. I am a light skinned Hispanic and I enjoy the slight deeper nude that this provides.
Question: Does this liner match with all lip colors? Thanks
Answer: Hey there, we appreciate you taking the time to reach out about our Slim Lip Pencil in shade Peakaboo Neutral. This shade matches with a variety of the lip colors we offer. With that being said, we encourage you to visit our website to decide whether or not this shade will go well with the lipstick you have in mind. Please do not hesitate to reach out with any other questions. XOXO
Question: Orange ??? nyx suede matte crayon
Answer: Hi there! Thank you for your interest in our NYX PROFESSIONAL MAKEUP Slim Lip Pencil in Ever. This shade is a warm mauve brown. We hope you found this information helpful!
Question: Does this stay on all day topped with a lipgloss? Trying to find a lipliner that last all day topped with lipgloss. If you have any recommendations
Answer: Hi there! This buttery soft, long-wearing lip pencil formula goes on easily and resists bleeding. Glide it on for an instant pump to your pout accompanying your favorite NYX Professional Makeup lipsticks and lip glosses. We hope you give it a try soon!

Ripple Junction Schoolhouse Rock Knowledge is Power Logo Group Adult T-Shirt

Ripple Junction

Based on 777 reviews Check latest price

Product description

Ripple Junction Officially Licensed Schoolhouse Rock T-Shirt

  • 52% Cotton, 48% Polyester
  • Made in USA or Imported
  • Officially Licensed
  • 52/48 Cotton Polyester
  • Machine washable

User questions & answers

Question: Is this a men's or a women's fit
Answer: Yes, it's bottles. I bought this for my son in gray. He loves it and wears it proudly while waiting on his baby girl to arrive this March.
Question: What is the length of the large size shirt? I’m 6’2”, have a long torso and it’s nearly impossible to find shirts that fit me properly
Answer: Black

Starrey Reflective Tape Red White 1 in X 12 FT Waterproof Self Adhesive Trailer Safety Caution Reflector Conspicuity Tape for Trucks Cars …

Hangzhou Quhua Import and Export Trading Co.,Ltd

Based on 2 reviews Check latest price

Product description

Our reflective tape roll is perfect for trailers, red white traffic Conspicuity tape is perfect color for warning Conspicuity tapes.Federal mandate requires all new trailers to be equipped with 1"and 2" wide reflective safety tape which runs along both sides and the rear of the trailer to make heavy trailers more conspicuous to other drivers to raise awareness on the roads and reduce unnecessary accidents.Reflective safety Conspicuity tape is designed for the trucking industry, it is also great for use on tractors and other agricultural equipment, ATV's, camper and motor homes, water buoys, personal watercraft, mailboxes, garbage cans and anything that needs enhanced visibility Nuestro rollo de cinta reflectante es perfecto para los remolques, la cinta blanca roja del tráfico es color perfecto para las cintas de advertencia. El mandato federal requiere que todos los remolques nuevos sean equipados con 1 "y 2" cinta ancha de la seguridad reflexiva que funciona a ambos lados y la parte posterior del remolque Para hacer los remolques pesados ​​más conspicuos a otros conductores para aumentar la conciencia en las carreteras y para reducir accidentes innecesarios. La cinta reflexiva de la seguridad se diseña para la industria que camina, tambien es grande para el uso en los tractores y el otro equipo agrícola, ATV, Boyas de agua, embarcaciones personales, buzones, botes de basura y todo lo que necesite mayor visibilidad

  • EXTRA STRENGTH OF STICKINESS,(please make sure the surface where you want to apply tape is dry and clean) Warning Color Red and White alternating, 6" red / 6" white reflective outdoor safety tape,Industrial Strength Adhesive,1 inch reflective tape. the longer you use our tape,the more sticky it gets into vehicle surface.EXTRA FUERZA DE LA PEGATINA.6 "rojo / 6" cinta de seguridad reflectante de color blanco(Asegúrese de que la superficie donde desea aplicar la cinta está seca y limpia)
  • 100% HIGH VISIBILITY 100% WATER PROOF 100% WASH RESISTANCE.Reflective Material amazing effect Ultra High Reflective Tape,Reflect Ultra Bright Light in All Directions! safety causion warning your perfect truck safety tape choice! 100% WEATHER PROOF and RESIST , 100% Water Proof ,Wash-Resistant,Resistant to Gasoline, Diesel and other Solvent. Outdoor reflective tape 100% ALTA VISIBILIDAD 100% RESISTENCIA A LA AGUA IMPERMEABLE A 100% Reflect Ultra Bright Light en todas las direcciones
  • HEAVY DUTY,FAIR PRICE BUT DURABLE.Color and Stickness for our caution safety tape will hold up for long time.Quality is similiar as the ones you bought at Home depot.do not waste your money on other tape with some funny price., Our tape is good enough for you to use. DISCOUNT PRICE BUT NO LACK OF QUALITY AT ALL.PRECIO JUSTO PERO DURABLE Color y Stickness para nuestra cinta se mantendrá durante mucho tiempo La calidad es similar a los que usted compró en el Depot.
  • MULTIPAL AND COMPLETE CHOICE OPTIONS FOR CONSPICUITY TAPE.ECONOMIC ROLLS.If you only want to stick on a helmut, buy the small size one like 1"x4' is good enough.TAMAÑO MÚLTIPLE CHOICE.ECONOMIC ROLLS
  • YOUR SATISFACTION IS SUPER IMPORTANT TO US.Email us or leave questions on our product page, We will be happy to asist you SATISFACCIÓN GARANTIZADA. Envíenos por correo electrónico o deje preguntas en nuestra página del producto, estaremos encantados de asist usted

User questions & answers

Question: Is it possible to stick on a wood fence
Answer: It is pretty sticky. If the wood was clean and painted I would believe it would work on wood.
Question: How well will it work on curves, like wrapped around a tube
Answer: Make sure the tube is very clean.
Question: Does it stick to a fabric surface
Answer: I used the tape on metal and thr adhesive is very strong I am not sure if the tape would stick to fabric. I do not think the tape would flex often without starting to crack.
Question: How sticky it is??What happen if the tape no longer stick to our trailer after 3 months
Answer: It is very sticky strong enough to hold to trailers.If you are not 100% satisfied,We will make a full refund even after 3 months

Product features

Starrey Reflective tape

Starrey reflective tape has been specially designed for auto industry. It ensures long durability, high brightness. It fits easily into your trailer, truck, helmet, skateboard, bicycle, or anywhere else you needs to enhance visibility. We hope you always put safety first.

SELF ADHESIVE WITH INDUSTRIAL ADHESION

Starrey tape has received best ratings for its strong adhesion and holding power to vehicle. MAKE SURE you stick to a dry and clean even surface.

WASH RESISTANCE

Starrey tape is designed to withstand the violent sun and heavy rain without fading. Resistance to gasoline, diesel and other solvent

WHERE TO APPLY ON A TRUCK

According to the DOT requirement, you should install reflector tape on the rear of the truck as showed in the picture.

APPLICATION VARIOUS

Works great for cars trucks trailers RVs campers boats mailbox ships fairways and mechanical equipment.

ENHANCED VISIBILITY

Starrey tape comes with high visibility RED and WHITE colors with reflective sheet on to ensure reflect lights better in the darkness

COMPLETE SIZE OPTIONS

Starrey tape is designed to meet your accurate needs. From 1/2 inch to 3 inch, choose the accurate width for your specific needs.

Logitech Trackman Marble Trackball Mouse – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray

Logitech

Based on 8 reviews Check latest price

Product description

Left handed? Right handed? When you're working on your computer day and night, and you want more flexibility, the Logitech® Trackman® Marble® will help increase your comfort level.

Ambidextrous trackball design

A trackball design with a long, broad palm area and gentle curves keeps your hand comfortable and supported all day-whether you use your right or left hand.

Stable base

Your hand stays comfortable all day long with this stay-put design. Plus, it saves you space.

Convenient button controls

Buttons let you easily move forward and backward when you're surfing the Web.

Fingertip-based control

You’ll enjoy fast, accurate cursor movement with just a move of your finger.

Marble® optical technology

Our patented technology gives you smooth tracking on almost any surface so you can be productive wherever you work.*

* Does not work on clear glass or mirrors

  • TRACKBALL COMFORT - Sculpted ambidexterous shape supports your right or left hand and stays in one place—move the cursor without moving your arm
  • CONVENIENT CONTROLS - Moving quickly between documents or browsing your favorite Web sites is a breeze with large, easy-to-reach Back/Forward buttons
  • ZERO SETUP REQUIRED - Flexible wired connectivity means you just plug the cable into your USB or PS/2 port - it works right out of the box.
  • PROGRAMMABLE CONTROLS - Configure the buttons to do exactly what you want like switching applications, opening browser windows or jump to full screen while watching videos
  • BUILT BY LOGITECH - This mouse comes with the quality and design we’ve built into more than a billion mice, more than any other manufacturer. System Requirements: Windows Vista Windows 7 Windows 8 Windows 10|USB port|CD-ROM drive|Mac OS X 10.4 or later

User questions & answers

Question: can this be used by left handed person...person has NO use of right hand
Answer: I have an earlier, non-programmable version which I purchased from Amazon in 2003 and it still works like new. I am actually right-handed, but I have always used it with my left hand because that placement is perferable to me. I have used it on both mac and linux operating systems. In either case, it is simple to configure for the left.
Question: I have this mouse and I LOVWE it! I like that the ball sits on top. Does this come in a wireless version
Answer: Is there a wireless version that is NOT a thumb rollerball? (thumb arthritis).I am looking for one JUST LIKE THIS... finger controlled trackball... and one that is not $280-$500 as listed here on Amazon.The "wireless" Logitech at Office Max and Office Depot is the Logitech marble trackball ( "thumb" ) mouse. $489http://www.amazon.com/Logitech-Cordless-Optical-Trackman-USB/dp/B00006B9CR/ref=sr_1_14?ie=UTF8&qid=1402505757&sr=8-14&keywords=wireless+trackballhttp://www.amazon.com/s/ref=sr_nr_p_89_0?rh=i%3Aaps%2Ck%3Awireless+mouse+or+trackball+Logitech%2Cp_89%3ALogitech&keywords=wireless+mouse+or+trackball+Logitech&ie=UTF8&qid=1402505574&rnid=2528832011
Question: Does it work with Linux Ubuntu laptops
Answer: I'm running Debian Stable (Ubuntu is based on Debian), and tracking/clicking worked right out of the box, including the "forward" and "back" buttons. I used the ArchWiki0 instructions for tweaking the configuration to what works best for me1. 0: https://wiki.archlinux.org/index.php/Logitech_Marble_Mouse 1: https://pastebin.com/A3dCjtJR
Question: Does the Logitech Trackman have a scroll option
Answer: In addition to the Setpoint software made by Logitech, I also installed a small program called "MarbleScroll". You can get it here with instructions from its creator: http://www.fewprojects.com/marblescroll-for-logitech-trackman-marble/. Works flawlessly. However, note that there doesn't seem to be an option to have it stay on after restarting your pc, but you can set it up to be part of your pc's startup routine. Easy to Google and do it yourself. After that, the product is perfect.

Product features

Smooth control at your fingertips

Right handed? Left handed? Either way, TrackMan Marble’s ambidextrous design and large fingertip-controlled trackball give you fast, smooth accurate cursor control—without moving or straining your hand and wrist.

System Requirements

  • Windows Vista, Windows 7, Windows 8, Windows 10 or later
  • Mac OS X 10.4 or later
  • USB port

ELECOM Wired Finger-operated Large size Trackball Mouse 8-Button Function with Smooth Tracking, Precision Optical Gaming Sensor (M-HT1URBK)

ELECOM

Based on 725 reviews Check latest price
  • ✅《OPTICAL TRACKING TECHNOLOGY》The ELEOM trackball provides precise cursor movement for superior accuracy so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency.
  • ✅《FUNCTIONAL 8 BUTTONS》You can assign favorite function to each button by using "ELECOM Mouse Assistant" ELECOM Mouse Assistant Software will be available to download from ELECOM NET website.
  • ✅《DPI CURSOR》Designed with a high-performance gaming optics system sensor and lens. The DPI button can easily change between 500(LOW), 1000(MID) and 1500(HIGH) DPI, making the movements of your cursor faster or slower.
  • ✅《EASY MAINTENANCE》The ball rolls on three 2.5 mm large artificial ruby ball bearings. They are extremely smooth and the relatively large size prevents dust and dirt from clogging them. So you don’t have to clean the ball bearings too often. The ball is held in place by the ball bearings, but can easily be popped out of the device, by pushing it through the hole in the bottom and it can be easily cleaned.
  • ✅《PRODUCT DETAILS》System requirements: Windows XP, Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or later, macOS 10.12 or later, Size: W4.5"(114.7mm) X L7.2"(181.9mm) X H2.3"(57.2mm), Weight: 9.2oz, DPI: 500/1000/1500 count (switchable), Connectivity: wired

Product features

ELECOM Wired Finger-operated Large size Trackball Mouse HUGE (M-HT1URBK)

-The ELEOM "HUGE" trackball provides precise cursor movement for superior accuracy. Help improving productivity and efficiency of your work.

-Optical Tracking Technology : Optical Sensor can read your accurate movement.

-Control and Do More with the functional 8 customizable button.

-DPI can be switched to 3 different speed.

-Palm Rest - Support your Palm/Wrist

- BallSize:55mm = 2.16 inch

Functional 8 Buttons

Assign up to 10 different functions to fit your work or gaming needs with 8 built-in mouse keys and a left/right scrolling tilt wheel that provides limitless clicking combinations.

Customizable Buttons

You can assign favorite function to each button by using "ELECOM Mouse Assistant" ELECOM Mouse Assistant Software will be available to download from ELECOM NET website.

Recommend for PC Gaming Control: Customize each button function to enhance your gaming experience.

DPI Switch

The cursor movement speed can be switched three levels; 500/1000/1500 counts. Get your computer set just the way you like.

Synthetic Ruby Support Bearings

Each trackball is fitted with large (2.5mm) synthetic ruby bearings to provide effortless glide and smoothness for precision operation. The large bearing size also requires less maintenance because it better resists dirt and grime.

Maintenance : Easy to Clean

The trackball can be quickly removed by the backside by pushing the ball.

As dirt and grime builds up around the trackball, the mouse cursor may jerk around the screen erratically or refuse to move at all. Keep your trackball clean all the time.

Without worrying about Battery Life

For USB WIRED connection type trackball mouse.

Carry with you and don't need to worry about the battery life.

Simply connect to your PC.

Power Off When You Don't Need It

Power button is in the backside of the mouse. Prevents battery consumption when not in use.

Low Energy Mode : Battery will last longer. Low energy consumption.

High Speed Mode : Sensor will track accurate movement but the battery will run out faster than low energy mode.

About ELECOM

ELECOM has a wide variety of product categories, including PC-related products, audio visual device-related products, digital equipment-related products, exercise-related products and more

We set out to create new markets with the concept of a “Human interface: Connecting users to devices with more comfort and better usability that are more friendly and comfortable for you and your family”.

How to Install the Driver (Most Recent Driver Version 5.2)

  1. Access to (ELECOMUS dot com) Check ELECOM's Global Home Page First
  2. Click (Mouse Assistant) tab on top of page
  3. Select Windows/MacOS version : Please check your computer OS before download.
  4. Check (Download) Tab and Click on (File name) 'mouse_driver_maxxxxxxx(.zip)'.
  5. Download the file named 'mouse_driver_maxxxxxxx(.zip)'. (The xxxxxxx part will change from time to time)
  6. Double-click on the downloaded file 'mouse_driver_maxxxxxxx(.zip)' and extract the file.
  7. Open the extracted folder 'mouse_driver_maxxxxxx' and double-click on the file 'mouse_driver_maxxxxxx(.exe)'.
  8. Follow the instruction of the wizard and complete the install, and then restart your computer.

■ If you have any problems, English support is available after purchase (Message can be send from your purchase history)

Kensington Expert Trackball Mouse (K64325), Black Silver

Kensington

Based on 5 reviews Check latest price

Product description

The Expert Mouse Wired Trackball is the ultimate productivity enhancer that makes working at the desk quicker, more accurate and extremely comfortable for your hand and wrist. Featuring DiamondEye technology, the trackball uses optical tracking to precisely follow small flecks embedded in the large 55mm ball to provide smooth, accurate cursor control. The four buttons are customizable using our highly intuitive KensingtonWorks software, while our award winning Scroll Ring lets you quickly scan up and down web pages and large documents. Add it all up and you get exceptional comfort and ease-of-use that has set the industry standard for more than 20 years.

  • Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease
  • Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design
  • Customizable 4-button design, scroll speed and cursor speed via KensingtonWorks software
  • ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.
  • Wired USB-A connection for reliable connectivity
  • Compatible with Windows (7, 8, 8. 1, and 10), macOS (10. 8 and later), and Chrome (OS 44 and later); 5 year and lifetime technical support

User questions & answers

Question: Does the scroll ring on this mouse have clicks that you can feel while scrolling - when scrolling through a set of images to be able to know that you
Answer: The scroll ring does have some sort of slight detents (clicks), although I don't know if each click correlates with a singular action, i.e., scrolling from picture to picture in your case.
Question: Can the Expert side scroll? I use spreadsheets that are really wide and have a lot of columns and need that feature
Answer: Even better than holding the SHIFT key, you can scroll horizontally ONE-HANDED: Assign one of the additional buttons to activate the SHIFT key using the included KENSINGTON TRACKBALL WORKS software. I recommend using the button opposite your thumb so you can use your thumb to scroll horizontally. So, for those RIGHT-handed assign SHIFT to the TOP RIGHT button, for LEFT-handed assign SHIFT to the TOP LEFT button. This works on Windows and Mac OS X.More Info: http://www.kensington.com/us/us/6498/trackballworks%e2%84%a2-customization-software
Question: Does it work on Linux
Answer: Yes. I’ve used this trackball with 5 different releases of Linux Mint going back some years. All 4 buttons will work, but you will have to monkey with your desktop environment to map them to what you want.
Question: does left click result in double click after use
Answer: I have a Kensington "Mouse Port/Serial" version (RS232 "COM" Serial or PS/2) Expert Mouse trackball (from the mid 90's) that I bought new all those years ago when I built my Intel 486 DX2-66 PC (66Mhz = 0.066Ghz) and have been using for hours and hours every day on each PC upgrade I've built ever since (currently a i7-4790K !), including audio editing, gaming, web browsing, and more... I still have the original box which says "OS2 Warp" and "Works with Windows 95 and Windows 3.1" and "5 Year Warranty" on it (yes, it's really THAT old!) and all these years later I'm now using it on a 4.0Ghz quad-core PC running Windows 10 Pro x64 with no problems whatsoever! Even after pounding hard on the bottom left button for gaming year after year it just took the abuse and kept on working fine. After about 15 years of that abuse along with lots of hard pressure holding of that same bottom left button for selecting audio segments, manually scrolling through documents and web pages, and so on, it began occasionally either releasing or double-clicking during selecting of audio segments as if I'd released the button when I had not, BUT after sitting overnight it always goes back to normal and doesn't act up like that unless I start doing lots of heavy thumb action with bottom left button holding or pounding again. If I remember to go a little easier on the pressing or don't do a ton of left button holds it can go for weeks before the bottom left button gets quirky again. Also note that it's literally 20 years old, it's been doing that off and on for about a decade now, and it has never been anywhere near as intermittent and downright useless as the Logitech buttons become in less than a year with comparable use. We have Logitech trackballs at work and after the third replacement batch in 2 years they've learned to live with the flaky buttons because the boss feels that $25-$40 for a mouse is absurd and he definitely won't spend the money to buy Kensington trackballs... I'm actually about to replace my 20 year old Kensington Expert Mouse with the new model, only because I need a KVM, my back-lit keyboard is "USB only" (PS/2 Support), USB didn't exist when I bought my now 20 year old Serial/PS-2 Expert Mouse, and although I have successfully gotten its' signals to convert to USB through a (RS-232 COM Port) "Serial to USB interface" and also got a PS/2 to USB keyboard/mouse signal converter dongle to work with it I haven't been able to successfully get either of those converted USB signals to pass through a USB KVM...I started to look for other ways to adapt PS/2 or Serial to USB that claimed to be KVM compatible but I couldn't find a workable solution that would pass through a USB KVM for less than the cost of a brand new Kensington USB Expert Mouse so sadly I think my 20 year old Expert Mouse is about to be retired and an new USB one will finally be taking its' place soon. I hope the quality of today's Kensington Expert Mouse is as good as they were 20 years ago. Time will tell... Also note that my 20 year old Expert Mouse that still works very well uses 2 giant wide metal rollers for the X and Y axis motion detection (that the ball rests on) with photo-led sensor wheels inside to generate the X/Y mouse movement signals, basically over-sized industrial grade versions of the small plastic roller rods the old rubber ball mice used to use (which had to be cleaned when the cursor started getting stuck and I need to clean these maybe once every 3-4 years at the most), unlike the much newer mouse technology of the past decade that uses optical detectors to actually look at the ball and see it move. As a comparison, Logitech once offered a big track ball mouse for a while that looked almost identical to the Kensington Expert Mouse for less than half the price and when I lifted the ball out to check out the rollers it was immediately obvious why the price was so much less. They were tiny rollers just like you'd find inside a cheap old ball mouse! So 20 years ago you got what you paid for, and even 10 years ago it was obvious that the Kensington products were still vastly superior in quality to their competition and based on the reviews here that still seems to be the case.

Product features

Kensington Expert Trackball Mouse (K64325)

The Expert Mouse Wired Trackball is the productivity enhancer professionals use to get more work done in less time. It offers highly accurate cursor control and great comfort for your hand and wrist. KensingtonWorks software can customize the 4 buttons, and our patented Scroll Ring lets you quickly scan up and down your screen. All from the brand that's set the industry standard for 20 years.

Wired USB Connection

Provides a direct and reliable connection for continuous performance and eliminates the need for batteries.

KensingtonWorks Customization

Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the 4 buttons, as well as adjusting cursor and scrolling speeds.

ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.

DiamondEye Optical Tracking

Movement detection technology provides smooth, precise cursor control so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency.

Scroll Ring and Large Ball

Spin the dial to move up and down web pages or documents with complete ease. The large 55mm ball has been specially designed with an absolute spherical, hard surface for precise tracking and control.

Ambidextrous Design

Works equally well for both right-handed and left-handed users to get the most out of their trackball.

Detachable Wrist Rest

Soft cushioning cradles the hand and wrist in ergonomics comfort or pain-free productivity during extended periods of activity on the computer.

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