This usb to ps2 adapter connects to an internal motherboard usb port letting you connect two ps2 devices such as a keyboard and mouse to your low profile or standard profile desktop pcthe adapter provides a practical cost effective way to bridge your legacy ps2 devices with a modern computer by allowing you to use ps2 devices on a computer that lacks built on ps2 portsplus unlike most native ps2 connections the usb to ps2 adapter interfaces with the host computer through the usb