Features: 1.This gigabit switch supports IEEE802.3Z/AB 1000Base?SXLX protocol, duplex full mode and half mode working mode. 2.The power socket of the optical converter is an adaptive 10/100/1000M Gigabit optical converter. 3.Optical fiber interface: SC optical fiber interface is duplex type, including TX and RX two interfaces. 4.When two sets of optical converters are connected or connected to a switch through optical fiber interfaces, the optical fibers are in a crossed?connected state, that is, "TX?RX" and "RX?TX". 5.The transmission medium adopts CAT5 and CAT 6 twisted pair cables. The high?quality RJ?45 and the well?made jumper have the function of automatically identifying the straight line and the crossed line. specification:Item Type: Gigabit Switch Material: Aluminum Alloy Standard Protocol: IEEE802.3Z/AB 1000Base-T/SX/LX Transmission Rate: Electrical Interface: 10/100/1000Mbps; Optical Fiber Interface: 1.25Gbps Operating Mode: Full-Duplex Mode or Half-Duplex Mode Power Parameters: 5VDC Ambient Temperature: 0-60 Relative Humidity: 5%-90% TP Line: 5E, CAT6 Transmission Fiber: Multi-Mode: 50/125, 62.5/125um; Single-Mode:: 8.3/125, 8.7/125, 9/125 or 10/125m PackageList:1 x Gigabit Switch 1 x User Manual