StarTech USB Mouse to PS 2 Adapter 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, and is backed by Lifetime Warranty