X-keys L-Trac Black TrackballBlack USB Laser Trackball with black buttons, globe and scroll wheel. Two additional input jacks located at top of Trackball that allow you to add 2 more buttons, the X keys feather Touch Switch (Sold Separately). Laser Tracking Rugged Construction using High Impact ABS Stainless Steel Ball Suspension Adjustable Resolution Ambidextrous Made in America with only the highest quality components and materials, X keys (formerly produced by Clearly Superior

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6ft Replacement Cord with Restraint is compatible with the front and rear USB Foot Pedals

globe and scroll wheel

or Linux computer

Tailor your keypad to your exact needs with 96 fully programmable keys

0-5 VDC Linear Output Voltage

5mm jack which can then be split using left and right cables to make 12 ports

20 key blockers

CST also offers "switch adapted" trackball models that allow the use of external switches for persons with motor control disabilities

Keyboard Specialists offer single replacement keycaps for the X-keys key stick collection with a backlighting window

It is compatible with X-Keys' 4

Even after-purchase support is available if you need any help with installing or setting up your X-keys