Kensington - Orbit Trackball with Scroll Ring, Wired USB-A, 40mm Ball, Detachable Wrist Rest - K75327WW - Wired - Space Gray

The Kensington Orbit Trackball with Scroll Ring is a wired stationary pointing device for desk users who want to move the cursor from one spot instead of sweeping a mouse across a pad. A 40 mm space gray ball sits at the center of the housing and is driven with the fingertips, so the wrist and forearm stay still and no clear tracking surface is needed beside the keyboard. Wrapped around the ball is the scroll ring, a rotating collar that scrolls long documents, spreadsheets, and web pages in either direction with one finger and offers smoother, more gradual control than a stepped wheel. Two buttons flank the ball, and both can be reassigned through the free KensingtonWorks utility so frequent commands sit under the fingers already resting on the device. The shell is symmetrical, giving left and right hand users identical reach to the ball and the same button geometry, and a detachable wrist rest clips to the front edge to lift and cushion the heel of the hand for longer sessions. Optical tracking handles cursor movement without a mechanical roller, and the ball lifts free for periodic cleaning. Connection is plug and play over USB-A with no driver download, and the assembly measures 8.7 by 6 by 1.8 inches or 221 by 152.4 by 45.7 mm with the wrist rest attached. Because the housing stays in one place, the trackball suits narrow desks, height-adjustable desks, and shared benches where there is no clear room to sweep a mouse. Windows, macOS, and Chrome OS are supported, and the trackball is backed by a 5-year limited warranty.