Cisco SFP-1G-LH= network transceiver module Fiber optic 1000 Mbit/s 13

1000BASE-X modules for 10G ports1000BASE-SX SFP for multimode fiber onlyThe SFP-1G-SX module operates in 10G. 10/25G dual rate and 10/25/50G tri-rate ports of Cisco switches and routers. but provides 1G connectivity. The SFP-1G-SX interoperates with 1000BASE-SX modules.The SFP-1G-SX module will only operate in 10G capable ports and will not operate in 1G only ports.1000BASE-LX/LH SFP for singlemode fiber and multimode fiberTHE SFP-1G-LH module operates in 10G. 10/25G dual rate and 10/25/50G tri-rate ports of Cisco switches and routers. but provides 1G connectivity. The SFP-1G-LH interoperates with 1000BASE-LX/LH modules.The SFP-1G-LH module will only operate in 10G capable ports and will not operate in 1G only ports.