4port usb hub Transfer: USB1.1/USB2.0 IC : GL850G-LQFP48 business type:factroy descriptionFeature:4port USB HUBFriendly and ergonomic design, ... installation. Complicant with Bluetooth Card reader, USB mouse, USB Keyboard, Scanner, Digital camera USB audio card , Hard disk ect. Provide ... !More to buy ,More cheaper! Whole sell! 100pcs/lot USB 2.0 HUB, 4ports USB HUB, real USB2.0 hi-speed,plug and play