Characteristics: 1. USB2.0*3 theoretical speed 480Mbps, standard USB2.0, to meet the needs of multi-port expansion. 2. CE FCC ROSH quality environmental standard production Description: Product name: 4-in-1 USB hub USB interface type: USB2.0 Features: drive free; Low latency; High speed connection Compatibility:Compatible with Windows, MacOS, Linux and other systems Size: 1.7cm * 19cm Package included: 1 * 4 port USB Hub