ITAC Systems Professional Desk Top MOUSE-TRAK - Trackball - 4 buttons - wired - USB

The MOUSE-TRAK Prosessional features 4 buttons, PS/2 mouseport interface, an ergonomic design and stainless steel bearings for long life and trouble free operation. This unit requires no drivers or software to operate and is compatible with all Windows OS's, Linux, Unix and MAC OS.