Brand: HPE | Category: Network Adapters & NICs
SKU: HPE-P42044-B21 | Part #: P42044-B21 | MPN: P42044-B21
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For low-latency workloads, NIC offload capabilities free up CPU cycles that would otherwise be consumed by network processing—and the HPE P42044-B21 delivers exactly that advantage. This dual-port Ethernet adapter combines 10GbE and 25GbE network speeds with hardware-accelerated offloads including LSO, LRO, RSS, and checksum offload, enabling storage architects and network engineers to maximize throughput while minimizing processor overhead. Built on the HPE Mellanox ConnectX-6 Lx platform, this adapter integrates RDMA support for RoCE v1 and RoCE v2 protocols, making it ideal for high-performance computing, virtualized environments, and demanding enterprise data center deployments.
The HPE P42044-B21 (manufacturer part number MCX631102AS-ADAT) connects via PCIe 4.0 x8, delivering the bandwidth required for modern workloads while maintaining compatibility with HPE ProLiant Gen10 and Gen10 Plus servers as well as HPE Apollo systems. SR-IOV support up to 256 Virtual Functions per port enables efficient resource sharing in virtualized environments, while NVMe-oF support ensures seamless integration with next-generation storage protocols. The low-profile form factor with full-height bracket included fits a wide range of server chassis. IT procurement teams and infrastructure planners will appreciate genuine HPE-branded component integration for consolidated support across HPE's single-pane management platform. Contact Omnixon Global for an RFQ on the HPE P42044-B21 and discover how this adapter strengthens your enterprise network infrastructure.
| Brand | HPE |
| Category | Network Adapters & NICs |
| SKU | HPE-P42044-B21 |
| Part Number | P42044-B21 |
| Condition | New |
| Capacity | 25GB |
| Form Factor | PCIe |
| Interface | Ethernet 10/25 Gb |
| Speed | 10/25 Gb/s per port |
| HPE Part Number | P42044-B21 |
| Manufacturer Part Number | MCX631102AS-ADAT |
| Product Line | HPE Mellanox ConnectX-6 Lx |
| Network Speeds Supported | 10GbE, 25GbE |
| Number of Ports | 2 |
| Port Interface | SFP28 |
| Host Bus Interface | PCIe 4.0 x8 |
| RDMA Support | RoCE v1, RoCE v2 |
| SR-IOV | Yes — up to 256 Virtual Functions per port |
| Hardware Offloads | LSO, LRO, RSS, Checksum Offload, VXLAN/Geneve tunneling offload |
| NVMe-oF Support | Yes |
| Form Factor | Low-profile PCIe (full-height bracket included) |
| Operating System Support | Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi |
| HPE Platform Compatibility | HPE ProLiant Gen10, Gen10 Plus; HPE Apollo servers |
| HPE Single-Pane Support | Yes — genuine HPE-branded component required for HPE integrated support |
| Regulatory Compliance | CE, FCC, RoHS |
The HPE P42044-B21 - HPE Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 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 P42044-B21 - HPE Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 Adapter: form factor PCIe; interface Ethernet 10/25 Gb; 1 year manufacturer support; new condition. Manufacturer part number P42044-B21. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
The HPE P42044-B21 - HPE Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 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.