4 ports usb hub
good quality
4 port usb hub

iHUB 2. New Version.

The smallest USB 2.0 Hi-Speed 4 port USB Hub,USB 2.0 and USB1.1 Compliant and USB-IF Certified

Supported data speed

Connected directly to your computer without an external power supply

Computer to install automatic identification, no driver, plug and play

Connected with the computer, 

Support: Win95/98/Me/2000/XP,Vista,Windows 7 and Mac OSX 10.2 and higher, Linux 9