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I'm not sure why people rave about this - I bought this as an "upgrade" to a 17 year old Trackball made by somebody else, and have to say that had a vastly superior design in every way compared to this, such a shame they're not made any more. The layout of this Kensington is cumbersome - the buttons are not positioned for easy finger reach whilst using the ball (unlike my old trackball). The scroll wheel being a horizontal ring is also not very ergonomically thought out, and there is no button built into it to assist with scrolling and panning operations as you get on most scroll wheels (and again something my 17 year old trackball had!). There is also a glitch - I don't know whether it's from the trackball itself or a driver issue - when using the scroll wheel there appears to be a delay / crosstalk such that if you press the ctrl key it thinks you want to zoom even after the scroll wheel isn't being used anymore - it can be incredibly annoying suddenly having something zoom up 400%. I think this trackball was most likely designed from the point of view of being something that looked different rather than actually being functional. If only they were made like my old trackball- I thought technology was supposed to improve after 17 years! Indeed 25 years ago I had an AlfaData trackball on my Commodore Amiga that was better to use than this!Read full review
Verified purchase: No
Great quality item
Verified purchase: Yes | Condition: Pre-owned
I have been using Expert Mice with my workstations for many years and bought this to use with a laptop. The old Expert Mouse (64215) was excellent, the mechanical system of large metal rollers far superior to the smaller rubber wheels found in other products (including Kensington's own) and all it lacked was a scroll wheel and USB connection. This model (64325) has optical technology, giving improved cursor control and also means cleaning is less critical (but still necessary on occasion). There is a scroll ring around the ball, which takes a bit of getting used to but works well, giving much further movement in a single stroke than a scroll wheel. The buttons are large, allowing for a range of hand sizes and positions both right- and left-handed. I personally move the ball with my middle finger, assigning a single button to each of the thumb and other fingers. These buttons are programmable, including two pairs of 'chorded' keys, so that there are six effective functions available. Keystroke sequences can be assigned to these buttons as well as the usual functions, allowing a greater versatility than other mice/trackballs. In addition, different assignments can be made for individual applications. The 64325 usually comes with a rubber wrist-rest that attaches to the front of the trackball. I found this not quite high enough and too hard for my liking - I use a cheap gel rest, which is far more effective. The only drawback I have found is that it is fairly easy to accidently press a button (particularly those on the right - I'm right-handed) when feeling for the scroll ring, but this is only a minor annoyance. There is nothing else on the general market that can compare with this for professional work - most trackballs are too small for precision.Read full review
I have been a fan of Kensington trackballs for years - since the days of TurboMouse for Mac. Around 2001 I bought a Kensington Orbit trackball, but I was slightly disappointed, because it failed on me. These things happen, though and, admittedly, the Orbit is at another price point. I had always put off the purchase of a K64325 because of its price tag, but I never stopped wanting one. Badly. Now that I bought one (albeit second hand) I can officially say, it IS worth every penny... even more so if you score a bargain on eBay! Do check one out, if you can.