Features a USB connector and two PS/2 connectors on the other end, so you can connect your PS/2 keyboard and mouse to your computer via an available USB port. Compliant with USB HID spec. USB bus powered. Fully compliant with PS/2 keyboard/mouse. Supports USB and PS2 plug and play. Also supports two PS2 keyboard or two PS2 mouse (2P model). Supports standard Windows multimedia keys. Supports Window 98/SE/ME/2000/XP/ and Mac OS9.0/OSX/Linux.