Brand: HPE | Category: Network Adapters & NICs
SKU: HPE-P08421-B21 | Part #: P08421-B21 | MPN: P08421-B21
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For low-latency workloads, NIC offload engines free CPU cycles that would otherwise be consumed by network processing—and the HPE P08421-B21 delivers exactly that advantage. This dual-port 10 Gigabit Ethernet adapter offloads TCP/IP checksums, UDP checksums, iSCSI operations, and large segment offload (LSO) traffic, while resident-set-size (RSS) capabilities distribute incoming traffic intelligently across processor cores. The result is measurable throughput gain paired with reduced CPU overhead, critical for demanding database, virtualization, and high-frequency trading environments.
Built around the Broadcom BCM57414 controller, the HPE P08421-B21 integrates seamlessly into HPE ProLiant Gen10 and Gen10 Plus server architectures. The adapter connects via PCIe 3.0 x8, occupies a low-profile form factor with standard bracket, and supports SR-IOV for granular virtual machine network isolation. Two SFP+ ports accept both direct-attach copper (DAC) and optical transceiver modules, while jumbo frame support up to 9 KB MTU accommodates larger payloads in Ethernet fabrics. Network engineers and IT procurement teams deploying converged storage and compute infrastructure will find HPE management integration—via iLO, OneView, and iSUT—essential for operational visibility and firmware updates through HPE SDR or Smart Update Manager. The adapter operates across 0°C to 55°C and is RoHS-compliant, certified for Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware vSphere ESXi. Contact Omnixon Global to request detailed specifications and an RFQ for HPE part number P08421-B21.
| Brand | HPE |
| Category | Network Adapters & NICs |
| SKU | HPE-P08421-B21 |
| Part Number | P08421-B21 |
| Condition | New |
| Capacity | 10GB |
| Form Factor | PCIe |
| Interface | Ethernet 10 Gb |
| Speed | 10 Gb/s per port |
| Manufacturer Part Number | P08421-B21 |
| Product Name | HPE Ethernet 10Gb 2-port 537SFP+ Adapter |
| Controller | Broadcom BCM57414 |
| Number of Ports | 2 |
| Port Type | SFP+ |
| Network Speed | 10 Gigabit Ethernet (10GbE) |
| Host Interface | PCIe 3.0 x8 |
| Form Factor | Low-profile (standard bracket included) |
| SR-IOV Support | Yes |
| Offload Engines | TCP/IP checksum offload, UDP checksum offload, iSCSI offload, LSO, RSS |
| Jumbo Frame Support | Yes (up to 9 KB MTU) |
| Operating System Support | Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware vSphere ESXi |
| Platform Compatibility | HPE ProLiant Gen10 and Gen10 Plus servers |
| Management Integration | HPE iLO, HPE OneView, HPE iSUT |
| Firmware Management | HPE Software Delivery Repository (SDR) / Smart Update Manager (SUM) |
| Cable Compatibility | SFP+ DAC (direct-attach copper), SFP+ optical transceivers |
| Operating Temperature | 0°C to 55°C |
| RoHS Compliance | Yes |
The HPE P08421-B21 - HPE Ethernet 10Gb 2-port 537SFP+ Adapter is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
Key specifications for the HPE P08421-B21 - HPE Ethernet 10Gb 2-port 537SFP+ Adapter: form factor PCIe; interface Ethernet 10 Gb; 1 year manufacturer support; new condition. Manufacturer part number P08421-B21. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The HPE P08421-B21 - HPE Ethernet 10Gb 2-port 537SFP+ Adapter interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.