GLC-SX-MM / 1000Base-SX SFP Transceiver Module

For sale is this fully functional Cisco GLC-SX-MM V04 module PN: 30-1301-04 The modules are fully functional and refurbished. The modules have been recently removed from a working environment. Manufacturer Description: The industry-standard Cisco Small Form-Factor Pluggable (SFP) Gigabit Interface Converter links your switches and routers to the network. The Cisco GLC-SX-MM 1000BASE-SX Ethernet transceiver is a Duplex SFP transceiver for optical communications. rated for distances up to 500m and a maximum bandwidth of 1Gbps.The GLC-SX-MM transceiver operates at 850nm wavelength. Specification ? Cisco 1000BASE-SX Ethernet SFP ? Up-to 500m over MMF @ 1Gbps ? 850nm Duplex SFP Transceiver ? 0?C – 70?C Operating Case Temperature ? No Digital optical monitoring capability ? Hot-swappable for SFP LC ports ? SFP MSA / IEEE Std 802.3