MASFP1GBSXST Compatible LC Multi Mode Transceiver Module, Full Duplex. The MASFP1GBSXST is a Cisco Meraki MA-SFP-1GB-SX compatible fiber transceiver module that has been designed, programmed and tested to work with Cisco Meraki™ brand switches and routers. It delivers dependable 1GbE (1000 Mbps) connectivity over fiber cable, for 1000BASE-SX compliant networks, with a maximum distance of up to 550m (1804 ft).