Keep high-speed copper links in service without reworking the cabling plant. The HPE 813874-B21 10GBase-T SFP+ transceiver delivers 10 GbE over RJ-45, making it a practical fit for switch uplinks, server connections, and other short-reach network runs where fiber is unnecessary. With support for Category 6a and Category 7 twisted-pair cabling, it gives infrastructure teams a straightforward path to 10 GbE on existing copper media. This module is MSA compliant, which helps simplify interoperability planning in mixed-vendor environments. The 10 Gbit/s data rate and 30 m maximum reach are well suited to closet-to-rack and rack-to-rack links where predictable performance matters more than long-distance transport. For teams standardizing on copper at the edge, this transceiver offers a clean way to add 10 GbE capacity without changing the physical layer design. Choose it when you need a compact SFP+ form factor, familiar RJ-45 connectivity, and a deployment profile that fits enterprise access networks. It is a focused, purpose-built option for organizations that value compatibility and controlled short-range performance.