TP-Link SM6110-LR. SFP transceiver type: Fiber optic Maximum data transfer rate: 25780 Mbit/s Interface type: SFP+. Product colour: Grey. Maximum data transfer rate 25780 Mbit/s. It is a 10G/25GBASE-LR high performance 1310 nm single-mode SFP+/SFP28 transceiver.