P42044-B21 Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 Adapter for HPE

The P42044-B21 Mellanox MCX631102AS-ADAT Ethernet 10/25Gb 2-port SFP28 Adapter for HPE is a high-performance networking interface engineered for data-intensive enterprise workloads, next-generation cloud architectures, and highly virtualized environments. Featuring dual physical ports utilizing Small Form-factor Pluggable 28 (SFP28) technology, this network interface card enables seamless execution at either 10Gb or ultra-fast 25Gb Ethernet line speeds.

Built upon the advanced NVIDIA ConnectX-6 Lx SmartNIC controller architecture, this adapter excels at reducing host CPU overhead through a robust suite of hardware-assisted stateless offloads. By migrating compute-heavy packet processing configurations directly to the adapter silicon, it maximizes server efficiency and frees up critical infrastructure cycles to run core production applications and virtual machine layers.

This network interface card leverages a high-speed PCI Express (PCIe) bus interface to guarantee continuous bidirectional communication between the server processor complex and the network infrastructure. The dual-port SFP28 architecture offers exceptional deployment flexibility, supporting short-range (SR) or long-range (LR) optical transceivers, as well as cost-effective Direct Attach Copper (DAC) twinaxial cabling arrays.

The P42044-B21 is completely optimized for modern software-defined data centers (SDDCs), delivering extensive hardware support for advanced network virtualization and overlay tunneling isolation layers. Hardened security features are deeply integrated within the physical adapter firmware, protecting against unauthorized modifications and providing clean, synchronized data telemetry to central monitoring suites.

RDMA over Converged Ethernet (RoCE v2) allows direct, memory-to-memory hardware transfers between servers on the same network fabric without passing data through the operating system layers or requiring host CPU validation. This results in ultra-low latency data transmission and significant processor relief, which is vital for high-performance computing, distributed database mirroring, and fast virtual instance live migrations.

Yes, the SFP28 ports feature native backward compatibility. The adapter can operate smoothly at 10Gb speeds using standard 10GbE SFP+ optical transceivers or 10Gb Direct Attach Copper (DAC) cables, allowing enterprise data centers to transition from legacy 10Gb systems to high-speed 25Gb links without a full hardware overhaul.

Every adapter card is isolated within a specialized anti-static multi-layer ESD envelope and packed with dense custom cushioning blocks. Orders are dispatched through premier international priority logistics channels, offering comprehensive global tracking and arrival within 3 to 5 business days.

No, this hardware asset operates natively without recurring software licensing fees. It is completely pre-integrated into standard HPE ProLiant firmware layers and supports standard driver communication paths across all major enterprise operating platforms, such as VMware vSphere, Red Hat Enterprise Linux, and Microsoft Windows Server.