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Kensington Expert Mouse Optical USB Trackball for PC or Mac 64325


List Price: $94.99
Price: $75.49 & FREE Shipping. Details
You Save: $19.50 (21%)
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  • Award-winning Scroll Ring around the trackball makes scrolling quick and easy.
  • One of the most elegant designs of any input device on the market
  • Largest ball of any of the mainstream, consumer devices
  • Great momentum and virtually frictionless rotation
  • Detachable wrist rest cradles your hand in comfort, Windows or Mac compatible; Compatible with Windows 8
103 new 17 used from $54.99

Frequently Bought Together

Kensington Expert Mouse Optical USB Trackball for PC or Mac 64325 + Microsoft Natural Ergonomic Keyboard 4000 for Business + Logitech Trackman Marble Mouse
Price for all three: $131.13

Some of these items ship sooner than the others.

Buy the selected items together


Special Offers and Product Promotions

  • Buy Used and Save: Buy a Used "Kensington Expert Mouse Optical USB Trackball for ..." and save 42% off the $94.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Details

Supplementary Guide [83kb PDF]
  • Product Dimensions: 3.5 x 9.8 x 9.8 inches ; 2.9 ounces
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00009KH63
  • Item model number: K64325
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (951 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: May 29, 2008

Product Description

From the Manufacturer

Navigate with greater comfort and precision while saving valuable desktop space with the Kensington Expert Mouse Optical USB Trackball. Its optical technology delivers precise cursor control with the touch of a finger while the two-button design provides an interface that's familiar to mouse users. Kensington Expert Mouse Optical USB Trackball is backed by the Kensington 5-Year Warranty and free technical support.

Kensington Expert Mouse Optical Trackball
Navigate with greater comfort and precision with the Expert Trackball. View larger

Why Trackballs?

Idea: Comfort No Mouse Can Match

It's simple: when you're more comfortable, you're more productive. For years, graphic designers and others have enjoyed the comfort and productivity that trackballs deliver. Now you can too. Trackballs require far less wrist movement than a mouse to provide a pain-free computing experience. They also use less desk space. And some can even be programmed to customized computing.

Kensington Expert Mouse Optical Trackball
Click here to learn more about the Kensington TrackballWorks software.
Idea: Your Trackball, Your Rules

Kensington TrackballWorks is software that allows you to customize the functions of each of the buttons found on your trackball. The result is a more productive and truly personalized computing experience. Now you can set your preferred functions or keyboard shortcuts for each trackball button or combination of buttons, adjust the pointer speed and acceleration and do so much more. Best of all, by allowing you to personalize your trackball experience, TrackballWorks makes your trackball work the way you do.

TrackballWorks is compatible with the latest operations system versions including Window 7, Windows Vista, Window XP and Mac OS.

Kensington Expert Mouse Features
  • All-day comfort from a world leader in trackball innovation
  • Uses far less desk space than a mouse
  • Optical technology delivers superior precision--no cleaning required
  • Ambidextrous design for left or right-handed users
  • USB connectivity for greater compatibility

Why Kensington Trackballs?

For over 27 years, Kensington has been listening to the needs of the computer user and delivering innovative solutions. Many of our comfortable, ambidextrous trackball designs feature larger balls for greater precision and innovative scrolling solutions for higher productivity. Plus, TrackballWorks software lets you customize your trackball's functions, keyboard shortcuts and more. And all Kensington trackballs are backed by best-in-class tech support and warranties.

Trackball Comparison Chart
Kensington Orbit Optical Orbit with Scroll Ring Orbit Wireless Mobile Expert Mouse SlimBlade
Orbit Optical Orbit with Scroll Ring Orbit Wireless Mobile Expert Mouse SlimBlade
Model 64327 K72337US K72352US 64325 K72327US
Designed for Comfort/Ergonomics
Saves Desk Space
Customizable Buttons via TrackballWorks Software
Scrolling
Removable Wrist Rest
Large Ball
4 Buttons
2 Buttons
Color of Ball Grey Blue Ruby Grey Ruby
Five Year Warranty

Product Description

The best trackball ever made has just gotten better. Designed for PCs and Macs, the new Expert Mouse employs Kensington's Diamond Eye optical technology for smooth, precise cursor movement. Surrounding the ball, we have a brand new implementation of our award winning Scroll Ring? that puts scrolling right at your fingertips. More comfortable than ever, the Expert Mouse? even comes with a soft new wrist rest-right in the box! You get all of these great new features along with the same, large ball, exceptional control, and ease-of-use that has set the industry standard for more than 15 years. PC and Mac compatible.

Customer Questions & Answers

Customer Reviews

The scroll wheel works as smoothly as the ball.
Robert T. Garrow
And it doesn't work on Vista - there is NO Kensington driver available for this mouse for 64-bit operating systems (Vista & Windows 7).
Amazon Customer
Thank you for contacting Kensington Technical Support.
William Raab

Most Helpful Customer Reviews

221 of 230 people found the following review helpful By Platypus Rex on February 4, 2004
Verified Purchase
Almost every day I work for hours using a Computer Aided Design program, and over the years have found the Kensington Expert Trackball to be an indispensible labor (and arm) saving device. You get so much with so little movement! I was looking to buy a new one.
I had misgivings about this product after reading some "Worse than Bad" reviews that were in this forum. Still, either because hope springs eternal or a fool and his money are soon parted, I went ahead and ordered one.
Out of the box ball rotation was _The Worst_ as others had said. I had deadlines, however, so decided to use it to see if anything would improve. Two hours later it had "broken in".
Trackball Wizards, my number five is on the trophy shelf. The Seven is AAMMAAZZIINNGG. Totally silent movement; virtually frictionless rotation; excellent functionality, and it has GOT to have one of the most eloquent designs of any input device on the market.
As an added bonus the scroll ring beats any scroll wheel I have used, anywhere.
Congratulations to Kensington for creating a truly superior product.
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92 of 98 people found the following review helpful By Shelley Gammon TOP 1000 REVIEWERVINE VOICE on November 21, 2003
This is a superior alternative to the silver and blue USB model by Kensington with the awkwardly placed scrollwheel. Kensington brings back their award-winning classic design, adds a scroll wheel around the ball (programmable for lefties or righties!), a free attachable wristpad and all using optics - no more skin, hair and potato chip crumbs getting stuck in scroll wheels... it's all done using light.
My less than perfect rating is for the less-than-fluid turning of the scroll wheel. It sometimes feels like you're grinding coffee when you're turning it. Sometimes it's smooth like butter, other times, it seems to skip a little... and it's not due to debris, since it's been like this since I got it out of the box.
This is something Kensington needs to iron out in their next model.
Despite this one flaw, this is simply the best their is and there's a good reason why this mouse flies off the shelves at nearly 100 bucks a pop - it's because it's the best input device alternative to a mouse - ever - anywhere.
Do your wrist a favor and treat yourself to navigating in joy.
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190 of 212 people found the following review helpful By Nathan A. Sweet on April 5, 2006
Verified Purchase
I got this trackball because of wrist pains in my mouse hand. I will give my complete unbiased review here.

First, it is very pretty. The buttons are nice looking and easily clicked. The ball is a nice size.

The trackball comes with a wrist rest, however it is not comfortable if you use your fingertips to move the ball. In fact, the Kensington documentation states that your hand should "hover" when using your fingertips to move the ball. The reason is, when you move the ball towards you, your fingers have to bend and your wrist bends upwards. In order to keep your wrist straight, you have to hover your palm over the wrist rest. So why did they include a wrist rest?

The only other configuration possible is to rest the blade of your hand, pinky side down, on the wrist rest and use your thumb to move the ball. This position feels good, however I found I am much less accurate with my thumb. Also if you have any thumb pain, this position is not feasible.

The scroll ring is a very nice feature. However, as everyone else has found, it sounds like it has sand in it when rotated. I took it apart and lubed it with a plastic safe grease. Even though I worked the grease into the mechanism, the plastic bearings still make the grinding sound while saturated in grease. I can't get to them to see if they can be replaced without breaking the plastic, which has been melted closed.

The ball was stiff out of the box. The ball sits on three very tiny red balls, which act as bearings. Remove the ball and put a small dab of grease on these bearings, replace the ball and spin it, then remove the ball and clean it. Clean up all the lube from the bearings so they don't get the ball greasy.
Read more ›
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131 of 148 people found the following review helpful By Borias on January 20, 2007
Verified Purchase
As a longtime trackball user (with one of my favorites being an older model of the Kensington Expert mouse) I was very excited about this one. The features were outstanding, the trackball movement and precision flawless, and the scroll ring was very useful. However, the trackball housing itself is constructed on a very steep incline. Even with the wrist pad that's included, it put my fingers in a big strain to operate the ball (I have average sized hands). It's tilted up, so that you have to reach up and out to use the ball. This puts strain on the tendons of your whole hand, and also presses the nerve cluster at the base of your hand against the pad or table. After using it for about a week, my hand was in agony.

Earlier Kensington Expert Mice were almost flat, and were very comfortable. It's baffling to me why they made this change in the design.

Kensington did take this mouse back for a refund even though I had used it for a week (all I could stand). It may be that this unit is comfortable for someone with very large hands. I've gone back to my Logitech Marble Mouse, regretfully -- if not for the incline, the Kensington would have truly been the perfect trackball.
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