StarTech.com 100BASE-ZX MSA Compliant SFP Module - LC Connector - Fiber SFP Transceiver - Lifetime Warranty - 100 Mbps - Max. Transfer Distance 80 km (49.7 mi)The SFP100BZXST is an MSA compliant fiber SFP transceiver that's designed, programmed and tested to work with 100BASE ZX compatible MSA switches and routers. The SFP transceiver module supports a maximum distance of up to 80 km (49. 7 mi) and delivers dependable 100 Mb Ethernet connectivity over fiber cabling. Delivers reliable 100Mbps connections for 100BASE ZX compliant networks StarTech. com SFP modules are backed by a lifetime warranty Complies