TP-LINK SM311LS Gigabit SFP module, Single-mode, MiniGBIC, LC interface, Up to 10km distance

Single-mode MiniGBIC module
Applied to T3700G-28TQ, TL-SG5412F / TL-SG5428, TL-SL5428E,TL-SG3210 / TL-SG3216 / TL-SG3424 / TL-SG3424P,TL-SL3428 / TL-SL3452, TL-SG2210P / TL-SG2216 / TL-SG2424 / TL-SG2424P / TL-SG2452, TL-SL2210 / TL-SL2218 / TL-SL2428 / TL-SL2452 and MC220L
Up to 20 km transmission distance in 9 / 125 μm SMF (Single-Mode Fiber)
Compatible with all SFP ports on TP-Link products including JetStream switches, and media converter MC220L.
Work with MC210CS with a single-mode fiber connection