PS/2 to USB ADAPTER: Premium PS2 to USB adapter compatible for PS2 Keyboard/ PS2 Mouse/ Windows/ Mac/ Linux/ Bar Code Scanner. FUNCTION: USB to ps2 adapter with two PS2 female ports, connects PS2 mouse and keyboard through USB port on any computer. USAGE: PS2 adapter to usb is compliant with the Standard Specification of USB 1.0 and 1.1. Purple port for keyboard and green one for mouse. CONVENIENCE: PS/2 to USB converter converts two PS/2 devices (Keyboard and Mouse) to the USB Interface. COMPATIBILITY: PS2 USB adapter keyboard converts the PC PS/2 port of KVM switch to USB port (PC or SUN platforms).