This listing is for a TP-Link 5-Port Gigabit Unmanaged Pro Switch, model TL-SG105E. It's designed for gigabit network expansion in small offices and home offices. It supports plug and play design, auto MDI/MDIX, and auto-negotiation for optimal speed on each port. Additional software features include QoS, IGMP Snooping, VLAN, Port Mirroring, Loop Prevention and Cable Diagnostics. Hardware specifications include 5 x 10/100/1000Mbps ports, 10Gbps switching capacity, jumbo frame support, fanless design, and power/link LEDs.