1) Compatible with USB version: USB 3.0, USB 2.0
2) USB port in use LED indicator: YES
3) With fuse to protect all devices
4) With DC 5V Power jack
5) Size: 16.5cm x 4.5cm x 2.5cm
6) The product itself built-in USB Cable , The USB cable's length: 60cm
7) System requirements: windows 2K / XP, vista, win7, Mac OS (10.X or above) / Linux
8) USB 3.0: Super speed transfer rates up to 5 Gbps
9) USB 2.0: Super speed transfer rates up to 480Mbps
10) USB Connectors: A-type downstream X7, B-type upstream x 1
11) LED: Blue (power)