The TP‑Link TL‑SM331T is a reliable 1000BASE‑T RJ45 SFP module designed to provide seamless Gigabit Ethernet connectivity for switches, routers, and other networking equipment. By converting an SFP port into a standard RJ45 copper interface, it enables high‑speed data transmission of up to 1 Gbps over Cat5e or higher Ethernet cables, with a reach of up to 100 metres. Built for flexibility and ease of use, the TL‑SM331T features a plug‑and‑play, hot‑swappable design, allowing it to be installed or removed without interrupting network operations. Its durable metal casing ensures long‑term reliability, while low power consumption helps maintain efficient performance in demanding environments. Compliant with industry SFP‑MSA standards, the module offers broad compatibility with a wide range of SFP‑equipped devices, making it an ideal solution for expanding network connectivity. Whether used in enterprise networks, data centres, or business environments, the TL‑SM331T provides a simple and cost‑effective way to integrate copper Ethernet connections into existing fibre‑based infrastructure.