5-Port Gigabit Ethernet Network Switch, Has 4 TP (rj45) ports and 1 fiber port. 10/100/1000Mbps RJ45 Port Supports Full/Half-duplex, Auto-negotiation, AutoMDI/MDIX, In Timaxk Signal Integrity Lab, we 100% passed tested. Each switch is individually tested on switches before delivery. In Timaxk Signal Integrity Lab, we 100% passed tested. Each switch is individually tested on switches before delivery.