Features: 1. Easy To Use, Simple And Convenient. 2. Good Idea For You Old Mouse Or Keyboard Which Have Ps/2 Interface. Specifications : 1.Quantity: 1pcs 2.Color: As Showns 3.Material: Plastic 4.Interface: Ps/2 Female To Usb Male 5.Size: Approx 50*16*12mm/1.96*0.62*0.47'' Package Include: 1 X Usb To Ps2 Adapter Notes: 1.Transition:1cm=10mm=0.39inch 2.Please Allow 1-3mm Error Due To Manual Measurement. Pls Make Sure You Do Not Mind Before You Bid. 3.Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item. Thank You!