You've got an SFP port on your switch, but the endpoint down the hall is a standard RJ45 jack. Or you need to push a copper run past what a direct patch cable will do. This D-Link DGS-712 transceiver slots into that SFP cage and gives you a 1000Base-TX connection out the other end, rated for a 100-metre copper run. No extra power supply, no configuration. You pop it in, run your Cat5e or Cat6 to the device, and gigabit speed is live. Six sitting on our shelf right now if you need one this week
| brand | D-Link |
| model | DGS-712 |
| type | SFP Transceiver |
| speed | 1000Base-TX (1 Gbps) |
| connector | RJ45 |
| max_distance | 100 m |
| form_factor | SFP |
| category | Networking |