Specifications:
1) USB 2.0 4-port high speed hub
2) Fully compatible with USB 2.0 specification
3) Fully backwards compatible with USB 1.1 specification
4) Supports transfer rate of 1.5/12/480 Mbps
5) 500mA each port is reliable up to 15 feet of transmission
6) Support self-powered mode - support hot plug and play
7) One upstream port, four downstream ports
8) (100-240VAC, 50/60Hz) power adapter (optional)
9) Color: silvery, blue, black, red, purple
10) Shell material: plastic
11) Supported operating systems:
a) Windows 98SE/ME/2000/XP
b) Mac OS 10.x or later

Inner packing:
1pc/box
Box dimensions: 6.20 x 4.25 x 0.6cm
N.W.: 1.5kg

Outer packing:
50pcs/ctn
G.W.: 8.5kg