Connect a USB Mouse to a computer through a PS/2 port. StarTech.com's Replacement USB to PS/2 Mouse Adapter converts a USB-A (male) connector into a PS/2 (male) connector, allowing you to plug your USB mouse into a PS/2 port.This high quality USB-PS/2 mouse adapter is designed as a replacement for a product that originally shipped with a USB to PS/2 converter.Please Note: This product is designed as a replacement adapter for a mouse that originally shipped with a USB-PS / 2 adapter. If your product did not ship with an adapter, try StarTech.com 's PS22USB instead.