STARTECH Gigabit Fiber Sfp Transceiver Module - GLCLHSMD10ST, Auto MDIX: Yes, Color: Silver, Material: Aluminum, 1 - Local Unit Connectors: Fiber Optic LC Duplex, Compatible Brand: Cisco, Industry Standards: IEEE 802.3z 1000BASE-LX/LH, Type: Single Mode / Multi Mode, Wavelength: 1310nm, Fiber Operating Mode: Full-Duplex The GLCLHSMD10ST is a ten-pack of our Cisco GLC-LH-SMD compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco® brand switches and routers. It delivers dependable 1 GbE connectivity over fiber cable, for 1000BASE-LX/LH compliant network