Usb hub 1.Compliant with usb hid spec 2.Fully.Compliant with ps/2 keyboard/mouse 3.Support usb and ps/2 plugand play 4.Support windows 98/se/me/2000/xp and mac os9.0/osx/linux Usb 3-port hub in 1.1 or 2.0 versions Use led status indicator Portable design for easy carrying Product size: 7.2 x 4.2 x 1.5cm Logo printing services are available Ideal as promotional or gift item 100pcs/ctncarton Size:57.5*38*30 Packing:color package