TPTp Tl-Sm311Lm Tp Link Tlsm311Lm Gigabit Sfp Module Multimode Minigbic Lc Interface Up To 550 275M Distance For Data Networking X 1 X 1000Basesx - Newegg.com
TL-SM311LM | MiniGBIC Module | TP-Link
Double Fiber 550 m SFP Optical Transceiver: TP-LINK TL-SM311LM