You've got the A unit at one end. You need this B unit at the other. The TP-Link Omada SM5110LSB-10 is the matching half of a WDM bi-directional pair that runs 10G full-duplex over one single-mode fibre strand. No second cable, no patch-panel gymnastics. It's hot-pluggable, so you swap it in while the switch is still serving traffic. DDM keeps an eye on optical levels so you catch a degrading link before it drops. Slots into any SFP+ port and plays nice with TP-Link 10G switches like the SG3428X and SG3452X. Three-year warranty. Grab your A and B pair and be done. Add to cart