Adopts high-strength metal Material with fine workmanship, compact and delicate. Adds 3 super speed US B3.0 ports. 5Gbps theoretical transmission speed. Integrated USB3.0 PHY controller, in line with USB3.0 transmission specifications. Downwards compatible with USB2.0/USB1.1. Single Chip USB3.0 to 10/100/1000M Gigabit Ethernet controller supports IEEE 802.3az Energy Efficient Ethernet. Supports IPv4 and IPv6 packets checksum offload engine(COE) to reduce CPU load. Supports full duplex operation with IEEE 802.3x flow control and half duplex operation with back-pressure flow control. Supports Wake on LAN function. LED indicator for power and Ethernet connection, USB bus powered. For Windows XP 7 8, hot swappable. Product name: USB3.0 to RJ45 multi-functional extension HUB Housing material: Metal Interface: 1 * RJ45, 3 * USB 3.0 Safety certificates: CE and FCC approval Operating temperature: 5C ~ 0C Storage temperature: -20C ~ 70C Size: 85*23.5*16.5mm Package Content: 1 X Gigabit Ethernet USB 3.0 Hub Notice: 1. Please allow 2-3% error due to manual measurement.Please make sure you do not mind before you bid. 2. The colors may have different as the difference display, please understand.