StarTech.com Cisco GLC-SX-MM-RGD Compatible SFP Module, 1000BASE-SX, 1GbE Multimode Fiber MMF Optic Transceiver, LC Connector, 550m, 850nm, DDM, Cisco ASR920, IE2000 IE4000, 1GE Mini GBIC

Lifetime Warranty (GLCSXMMRGDST) - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-SX-MM-RGD) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm