Evoluent Right Hand Vertical Mouse 4

The Evoluent Vertical Mouse 4 Right has a patented shape that allows you to use in a relaxed handshake position and generally avoiding forearm twisting. a fast adjustable 800 - 2600 dpi optical sensor reduces hand movements needed to move the pointer. Easy clicking but firm enough to avoid accidental actuation.  6 programmable buttons have 59 selectable functions each plus special features for scrolling and clicking to ease the workload.

The New features of the Vertical Mouse 4 are:-
Improved Thumb Rest: - The thumb rest has been reshaped to provide even more comfort over earlier versions.
Now Two thumb buttons: - A new bottom thumb button provides greatly extended functionality when used with the included driver.
Extended Lip prevents Rubbing - An Extra wide lip along the bottom edge prevent the last finger from rubbing the desk.
Adjustable Laser Sensor: Pointer speed controls on the side allow convenience adjustment without even releasing your grip from the mouse.
Pointer Speed Indicators - Top mounted LEDs show through the chrome thumb rest to indicate selected pointer speed including extra low (XL), low (LO), MD (medium) to high (HI).

Compatibility
PC - Windows XP, Vista, 7 32/64 bit. Driver not required for basic functionality but buttons are programmable with driver installed.
MAC - OSX or newer without a driver (basic functionality) a Mac driver is coming late 2010
Linux - Basic functionality without additional driver
USB only