SFP-5040-WB - Fast Ethernet OC3 or STM-1 BiDirectional single strand WDM SFP transceiver, Tx:1550nm/Rx:1310nm, type B, max range 40Km, single LC connector
StarTech.com Cisco GLC SX MM Compatible SFP Module 1000BASE SX Fiber Optical SFP Transceiver Lifetime Warranty 1 Gbps Maximum Transfer Distance 550 m 1804 ft 100percent compatibility with Cisco GLC SX MM
StarTech.com MSA Uncoded SFP Module - 1000BASE-TX - 1GE Gigabit Ethernet SFP SFP to RJ45 Cat6/Cat5e Transceiver Module - 100m