Wide Compatibility:Compatible for Cisco and open switch: Cisco GLC-SX-MMD/GLC-SX-MM/GLC-SX-MM-RGD/SFP-GE-S, Ubiquiti UF-MM-1G, Netgear AGM731F, D-LINK DEM-311GT, TP-LINK TL-SM311LM, Zyxel SFP-SX-D, Mikrotik S-85DLC05D. 1000BASE-SX SFP fiber module: 1000Mbps data rate, duplex LC connector, 850nm wavelength, the transmission distance up to 550m, working temperature: 0 ~ +70, Tx Power(dBm): -9.5 ~ -3, Rx Sens.(dBm): -18. Easy to use: Plug and play, hot-pluggable. Rotate the ring latch down at 90 degree angle to unlock, then pulling transceiver out from switch. DDM support: DDM allows you to monitor the critical information, to find out some potential problems. High Quality: All of products are manufactured under strict quality control system, every module has been tested one by one on different switches before shipping, to ensure compatibility with different brand of switch. After-sales Service: 30-day free return, 1-year warranty, lifetime technology support.