1.LED light indication.
2.Compact and slim size.
3.With fuse to protect all devices.
4.Plug-and-play. Total 4 female USB 3.0 ports.
5.Features on/off switch for all 4 USB 3.0 ports.
6.Work with bus-powered, no external power supply required.
7.USB 3.0 transfer rate up to 5.0 Gbps, backward compatible with USB 2.0 transfer rate up to 480 Mbps.
8.Connects to scanners, printers, digital cameras, camcorders, speakers, mice, keyboard, external drives, MP3 players and more.
9.All slots can be used at the same time for data exchange (if you use all slots, external AC adapter is required).

Specifications:

Color:Black
Power supply: DC 5V
LED: Blue (Power)
Cable Length: Approx.30cm
Dimension: Approx.10.2(L) x 4.3(W) x 2.2(H)cm
USB Connectors: A-type downstream X 4, B-type upstream X 1
Driver Support: Windows 2k/ XP/ Vista/ 7, Linux, Mac os 10.0+
Maximum Data Transfer Rate: (5 Gbps)USB 3.0, 480 Mbps(USB 2.0)

Package Include:

1 * 4 Ports USB 3.0 Hub
1 * Power Supply Adapter (US Plug)