| | |  | Office Products | Home » » Kensington Expert Mouse Optical USB Trackball for PC or Mac 64325 | | | | | | | Product Promotions: | | | | | Description: | | The best trackball ever made has just gotten better. Designed for PCs and Mac's, 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. | | | Features: | |
• Award-winning Scroll Ring around the trackball makes scrolling quick and easy.
• A user says - One of the most eloquent 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
| | | Product Details: | | | Product Length:
| 5.0 inches | | Product Width:
| 5.75 inches | | Product Height:
| 2.5 inches | | Product Weight:
| 2.0 pounds | | Package Length:
| 9.8 inches | | Package Width:
| 9.8 inches | | Package Height:
| 3.2 inches | | Package Weight:
| 1.8 pounds | | Average Customer Rating:
|  based on 413 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
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2 of 2 found the following review helpful:
 This model is nothing like the old white modelNov 10, 2009
I wanted a trackball to ease the pain in my wrist from mousing and remembered the excellent Kensington Expert Mouse that I used to use with my PowerMac 7500 years ago. That was a fantastic mouse. I had read the reviews here for and against this model and thought I would purchase it despite the preponderance of negative reviews.
I wish I had paid attention to the negative reviews... this Expert Mouse works nowhere near as well as the old one. The build quality is cheap, there is no way this is a good value at $85 anymore. I would say a fair price would be about $35.
The old Expert Mouse had sealed ball bearings, this one has tiny glass beads that don't rotate and collect goop causing the ball to move as if it's in butter. I have tried cleaning the tiny beads with intermittent success. There is a scroll wheel that when moved sounds as if it's sliding over sand, and the buttons make a tremendous amount of noise.
Kensington's software for Mac OS X is remedial. You will have to buy a shareware program to use all of the mouses buttons, etc. Figure that will cost another $20.
I remember the old Expert Mouse, when I gave the ball a spin it would spin and the more it was used the better the ball spun, this one is nothing like that because the sealed ball bearings have been dropped from the design. That is the major flaw.
I am sorry to say that I recommend against this mouse and I am on the hunt for another. If I could have seen it in a store first I would have never purchased it.
1 of 1 found the following review helpful:
 Best TrackballNov 06, 2009
There is nothing about this trackball that merits anything other than a perfect rating. I have been using this mouse and its predecessors for years. It is smooth, sensitive, comfortable... pretty much perfect. I cannot recommend it strongly enough.
1 of 1 found the following review helpful:
so glad these are back!!Nov 04, 2009
Had one of these a long time ago, long before USB, and it wasn't optical. When everything went in that direction, I had to switch to a Microsoft ball, which I never got used to because it was too small.
Was glad to see Kinsington brought these back. REALLY BIG with four buttons, which can each be programmed for a function of your choice. Easy to use and you won't have the issues you have with a smaller device, such as hand/finger/wrist fatigue.
Best mouse/trackball I have ever used.
2 of 3 found the following review helpful:
My second one. Office and home.Oct 30, 2009
I purchased this one for the office. The corporation imposes PC/Windows XP. What a drag that the included MouseWorks software interferes with launch of corporation software. Have to work without MouseWorks so I cannot customize the buttons. So, instead of using my middle finger to perform double-click with a single stroke, I have to use my thumb to perform double-click. This will lead to a disease of the joint.
3 of 3 found the following review helpful:
 No Win 7 or Vista supportOct 28, 2009
I love my two Expert Mice, but when I got a new computer this week I also got this response from Kensington support:
"We regret to inform you that, Kensington has no plans to release a compatible Mouseworks software \ driver for VISTA and Windows 7 Operating Systems.The trackball can be used as a normal mouse on Vista and Windows 7 OS and the programmability of the buttons is not possible on Vista and Windows 7 OS."
So this has become an orphan product. Too bad, as I don't know of any good alternative.
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