Cisco GLC-T=-RFB is a used or refurbished 1000BASE-T SFP transceiver for adding a copper Ethernet link through a Gigabit Ethernet SFP port. It connects to Category 5 copper wiring using an RJ-45 connector.
The listing specifies a maximum data rate of 1000 Mbit/s and a maximum transfer distance of 100 m. This makes the module suitable for linking network equipment over a copper Ethernet run within that stated distance.
Accessories may not be included.