Cisco SFP-10G-SR Compatible - SFP+ Transceiver Module - 10GBASE-SR The SFP10GSRST is a Cisco SFP-10G-SR compatible fiber optic transceiver module designed, programmed and tested to work specifically with Cisco™ switches and routers. It delivers reliable 10GbE connectivity over fiber optic cable for 10GBASE-SR compliant networks with a maximum distance of up to 300m.