1) 4 downstream (USB 3.0 A-type) ports and 1 upstream port

2) Complies with USB specification 1.1 and 2.0

3) Supports high-speed (5G Mbps), full-speed (480Mbps) and low-speed (12Mbps) USB device profiles

4) Per-port over-current detection and protection

5) Supplies USB bus power

6) Automatic switching between self-powered and bus-powered modes supports plug & play

7) Pocket size with Micro USB connector

8) Connected cable length: 60cm

9) Support Windows 7, VISTA, XP, 2003, 2000, ME, MAC OS 10.X, LINUX

10) Size: 10cm x 4.5cm x 2cm