Cisco 1000BASE-LX/LH SFP transceiver module for MMF & SMF. Maximum data transfer rate: 1000 Mbit/s, Cabling technology: 1000BASE-LX/LH. Connectivity technology: Wired. Maximum transfer distance: 10000 m, Wavelength: 1310 nm. Compliance industry standards: IEEE 802.3z, Safety: Laser Class I 21CFR1040 LN#50 7/2001, Laser Class I IEC 60825-1. Weight: 75 g

The industry-standard Cisco® Small Form-Factor Pluggable (SFP) Gigabit Interface Converter is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. SFPs can be used and interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX, or 1000BASE-BX10-D/U on a port-by-port basis. 1000BASE-LX/LH SFP for Both Multimode and Single-Mode Fibers The 1000BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable.