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|Number of USB 2.0 Ports||1|
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Kensington Expert Trackball Mouse (K64325)
|Price:||$74.55 & FREE Shipping. Details|
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- Large ball Trackball Mouse with Scroll Ring for comfort and precision
- Customizable 4-Button design via TrackballWorks software
- Compatible with Windows (including Windows 8) and Mac OS Computers
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This item: Kensington Expert Trackball Mouse (K64325)
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From the Manufacturer
- Compatible with Windows 10, 8.1, 8, 7 and Mac OS X
- 2 Year Warranty
- 90-Day Money Back Guarantee (Warranty and Guarantee only valid if purchased through Kensington Authorized Resellers)
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. TrackballWorks software can customize the 4 buttons, and our award-winning 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.
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.
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.
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 ergonomic comfort for pain-free productivity during extended periods of activity on the computer.
Top Customer Reviews
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.
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.
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 is large and very pleasant to use. It was stiff out of the box though. The ball sits on three very tiny red balls, which act as bearings. Over a few hours of use, the grease from your fingers will lube the bears somewhat. You can also 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.Read more ›
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.
Most Recent Customer Reviews
The bluetooth makes it so nice for my movie room. Program able buttons, too cool.
I just wish it was covered in the instructions on how to program the buttons..... Read more
Bluetooth constantly cuts out when connected to my Macbook Pro. Tried two separate devices and three different brand batteries.Published 23 hours ago by Edmund Kump
Despite how I set it in preferences, the cursor jumps around a lot more than I'd like.Published 4 days ago by rich58b
I am a long time and satisfied user of the Kensington Expert Trackball mouse (15 years+) and never consider purchasing other brands or styles when I need a new desktop mouse. Read morePublished 4 days ago by DJEPRR
Kensington completely missed the mark with the scroll wheel. It is scrunchy and unsmooth and inconsistent. It feels like cheap plastic rubbing on plastic. I expected more. Read morePublished 6 days ago by David
As always, Kensington is a quality product. I would recommend it to anybody.Published 7 days ago by Jackie R. Lewis
I bought this trackball for use with my laptop, but the controller is huge! Read more
I've been using this mouse for several months now and I love it! I find it comfortable to use and don't have any issues at all. I expect to get many years of use out of it!Published 8 days ago by SleepsWithDogs