HPE 10Gb DP 521T PCIe 3.0 x8 Ethernet Adapter

The HPE 867707-B21 is an adapter that provides two 10-gigabit Ethernet ports on a single PCIe 3.0 x8 card, giving servers a straightforward path to higher network throughput without rewiring the data center. Each port uses an RJ-45 connector that operates over standard CAT 6A cabling and automatically steps down to 1-gigabit speeds when it encounters older infrastructure, so you can mix new and existing hardware with no disruption.

Installation is uncomplicated: slide the card into an available PCIe 3.0 x8 slot, load the driver, and the server gains a pair of high-bandwidth links ready for aggregation, redundancy, or isolated traffic paths. Support for jumbo frames up to 9.2 KB, VXLAN offload, and RoCE v2 accelerates traffic for storage overlays, hyper-converged clusters, and latency-sensitive applications.

Security features operate at firmware level to help protect the host system. Digitally signed firmware, Secure Boot support, and an on-board firewall verify the adapter’s code during every power-on cycle, reducing the risk of tampering or unauthorized loads.

Because the card supports SR-IOV, it can present multiple virtual functions directly to guest operating systems, trimming overhead in virtualized environments and freeing CPU cycles for guest workloads. An operating range from 41 °F to 140 °F and an 8.4-watt power draw make it suitable for high-density racks where thermal headroom and energy efficiency matter.

Typical users include IT teams running HPE Gen10 servers that need a bandwidth upgrade for backup windows, database replication, or virtual machine migration. It also fits remote offices that want faster file transfers yet must keep their existing copper wiring intact.

• Two RJ-45 ports that operate at 10GBASE-T and 1GBASE-T
• Plugs into a standard PCI Express 3.0 x8 slot
• Uses existing CAT 6A cabling, no new fiber required
• Jumbo frame support up to 9.2 KB for efficient large-packet traffic
• Digitally signed firmware, Secure Boot verification, and hardware firewall
• SR-IOV, RoCE v2, and VXLAN offload for virtualization and overlay networks
• Rated for operating temperatures from 41 °F to 140 °F
• Typical power consumption is 8.4 watts
• Qualified for a broad range of HPE Gen10 server models