Kensington Expert Mouse

Wireless

• Wireless. Support both Bluetooth 4.0 LE or USB Nano receiver.
• Scroll Ring
• 4 programable buttons
• Detachable wrist rest

Work in Linux?

Yes. Works in Linux out of the box.

1. Lower left button is left click.
2. Lower right button is right click.
3. Top left button is middle click.
4. Top right button is browser back button.
5. Scroll ring works.

You can remap mouse buttons in Linux using xinput. [see Linux: How to Swap Mouse Buttons]

Size Comparison

Trackball Sizes Comparison

Ball Size

Ball diameter is 55 mm.

Wired

Expert Mouse vs Slimblade

Looking at all web comments, some people prefer the Slimblade, but some Expert Mouse.

Slimblade

History of Kensington Expert Mouse

Kensington was famous, throughout the 1990s in the Macintosh community, for its large ball trackball. In almost all 1990s, the Kensington trackball is the coveted device for high-end Mac owners for all their graphics design needs.

Since the 2000s or perhaps late 1990s, their market got eaten by Logitech Trackballs, and i think their product's quality and innovation also gradually declined.

I think one major problem is that the ball has a lot friction. I remember i tried it in stores and think the friction is the worst of all trackballs i've put my hands on.

Also, Kensington's classic design always seems unwieldy for me. That you have to bend your wrist up to use it. If i actually use this, i'll have to put a folded-towel in front to rest wrist on.

This trackball is notorious for not supporting Windows 7. (2011-01-26 update: Shadow Skill says Windows 7 driver has been released.)

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