SFP-10G-T-X - Cisco 10GBASE-T SFP+ Module for RJ45

Cisco SFP-10G-T-X — 10GBASE-T SFP+ RJ-45 Copper Transceiver Module What it is SFP-10G-T-X is a Cisco 10GBASE-T SFP+ transceiver that lets a compatible SFP+ port connect to standard copper Ethernet cabling through an RJ-45 connector. It supports 100 Mbps, 1 Gbps, and 10 Gbps Ethernet, making it useful when you need to connect a switch, router, server, or other network device over copper instead of fiber. Why buyers pick SFP-10G-T-X (plain English) Adds 10G copper to an SFP+ port: Useful when your switch has SFP+ slots but the device you need to connect has a standard 10GBASE-T RJ-45 interface. Uses familiar Ethernet cabling: At 10Gbps, it works with Cat6A, Cat7, or better cabling for runs up to 30 meters. Backward-speed support: The module can also operate at 100 Mbps and 1 Gbps on supported Cisco platforms. No fiber required: Ideal for short rack-to-rack or device-to-switch connections where existing copper cabling is more convenient than installing fiber. Hot-swappable: It can be inserted or replaced in a compatible SFP+ port without shutting down the host device. 60-second spec box (SFP-10G-T-X) Interface SFP+ form factor 1 × RJ-45 Copper Ethernet transceiver Hot-swappable Supported speeds 100 Mbps 1 Gbps 10 Gbps Actual supported speeds can depend on the Cisco host platform 10Gbps cabling 10GBASE-T Cat6A / Cat7 or better Maximum reach: 30 meters 100M / 1Gbps cabling Cat5e / Cat6A / Cat7 or better Maximum reach: 100 meters Power Up to 2.5W at 10Gbps Lower power consumption at 100M / 1Gbps Connector Standard RJ-45 Twisted-pair copper Ethernet Compatibility Designed for compatible Cisco SFP+ / SFP28 ports Supported across selected Cisco Catalyst, Nexus, NCS, and other platforms Always verify the host platform's transceiver compatibility because some switches impose power or speed restrictions Where it fits (and when to choose something else) Perfect for: Connecting a 10GBASE-T server to an SFP+ switch Short 10G copper links inside a rack Connections between adjacent racks Reusing existing Cat6A cabling Situations where an RJ-45 interface is required but the switch only has SFP+ ports Choose something else if: You need more than 30 meters at 10Gbps → use a fiber transceiver such as SFP-10G-SR You need long-distance single-mode fiber → choose SFP-10G-LR Both devices have SFP+ ports and are close together → a 10G DAC cable is usually simpler and lower power You only need 1Gbps copper → consider GLC-TE Your switch does not support the higher power requirements of 10GBASE-T SFP+ modules → use a supported optical or DAC alternative TL;DR SFP-10G-T-X is a Cisco 10GBASE-T SFP+ transceiver that converts a compatible SFP+ port to RJ-45 copper Ethernet, supporting 100M, 1G, and 10G speeds, with 10Gbps reach up to 30 meters over Cat6A/Cat7 cabling.