GLC-LH-SMD — SFP 1 Gbps

The GLC-LH-SMD is a Cisco 1 Gbps SFP module for single-mode fiber, covering up to 10 kilometers via an LC (UPC) connector on a duplex cable. Compliant with the IEEE 1000BASE-LX/LH standard, it operates across a range of -5 to 85°C — an extended thermal tolerance that sets it apart from many commercial 1G modules. This SFP format is compatible with the full Cisco switch ecosystem supporting Gigabit fiber.

An essential reference for inter-building and inter-campus Gigabit connections over SMF, the GLC-LH-SMD is widely deployed in enterprise networks, universities, and local government organizations. Its 10 km reach covers the vast majority of campus links without requiring a repeater. Its extended thermal range also makes it a reliable choice for non-climate-controlled technical rooms. Genuine Cisco hardware, manufacturer warranty.