Color Black + blue Material ABS Connector Type USB 3.0 Port Number 4port Transmission Rate 5Gbps Supports System Windows 2000/XP/Vista/7/8/linux/mac Spacing 0.9m Other USB 3.0 high speed standard; Independent switch design, more convenient to control; Integrated battery charge controller circuit design Packing List 1 x Hubอ่านเพิ่มเติม