Create 10 Gbps fiber uplinks between compatible SFP+ ports where copper Ethernet distance limits do not fit the link path. The TP-Link Omada MC420L is a 10GBASE-LR optical transceiver for single-mode fiber, using a duplex LC optical interface and 1,310 nm signaling. Its long-reach optical format supports point-to-point connections of up to 10 km. Install the module in a compatible SFP+ slot on an Omada switch or other supported network device, then connect duplex single-mode LC fiber to establish the optical link. This approach suits links between network closets, separate building locations, distribution switches, and server-room infrastructure where an electrical 10GBASE-T connection is impractical. Both ends of the connection require compatible 10GBASE-LR optics and matching single-mode fiber. The distinguishing characteristic of this module is its LR optical reach: it is intended for longer single-mode fiber runs rather than short-reach multimode links or copper RJ45 connections. The pluggable SFP+ form factor lets an administrator populate only the optical ports required for a specific network path while retaining the host switch's port density. Use LC duplex patching and 10G-capable SFP+ host interfaces to maintain a matched optical path from end to end.