- The CyberData 3-Port Gigabit Ethernet Switch enables users of a PC to split a single Gigabit Ethernet port into two Gigabit Ethernet ports. The power for the switch is supplied by the PCs USB port. - 3-port auto-negotiating (no crossover cable required) - 10/100/1000 full duplex- USB or PS/2 mouse-powered (no external power supply required) - Link/status and connection speed LEDs- Low power- RoHS compliant