HPE P08458-B21 Intel E810XXVDA4 10/25GbE 4-Port SFP28 Network Adapter
Overview
The P08458-B21 is HPE's OEM version of the Intel E810XXVDA4, a quad-port 10/25GbE PCIe adapter built on Intel's E810 controller and fitted with four SFP28 ports. It is purpose-validated for HPE server platforms — factory-new, genuine HPE-sourced — and is the right choice when a single-slot PCIe card needs to carry four independent 10GbE or 25GbE uplinks without requiring a separate breakout switch. Typical deployments include high-density virtualization hosts that need bandwidth headroom per VM, storage-front-end connections to NVMe-oF or iSCSI arrays, and spine-leaf leaf nodes where 25GbE wire speed per port keeps east-west latency predictable.
Compatibility
Validated for HPE ProLiant Gen10 and Gen10 Plus rack and tower servers (including the DL360, DL380, DL560, DL580 families) and HPE Synergy compute modules that expose a PCIe 4.0 or PCIe 3.0 x16 slot. Requires SFP28 transceivers or Direct Attach Copper (DAC) cables rated for 10GbE or 25GbE; HPE-branded optics and DACs are the validated path for full firmware and support compatibility. The Intel E810 driver stack is supported under VMware ESXi, Windows Server, and major Linux distributions — confirm your specific OS revision against HPE's SPOCK compatibility matrix before provisioning. Not compatible with non-HPE server platforms under this part number; the retail Intel E810XXVDA4 carries a different firmware baseline.
