HPE 10/25Gb 2-Port SFP28 Ethernet Adapter – P42044-B21

BRAND NEW WITH FULL HPE WARRANTY!!!

The HPE Mellanox MCX631102AS-DAT 10/25Gb 2-Port SFP28 Ethernet Adapter (P42044-B21) is a high-performance network interface card designed to deliver scalable, low-latency 10 GbE and 25 GbE connectivity for HPE ProLiant servers and other supported HPE compute platforms. Based on Mellanox technology, this adapter provides enhanced throughput, efficient CPU utilization, and robust networking features suitable for virtualization, storage traffic, high-performance compute, and data center environments.

Featuring two SFP28 ports, this adapter supports 10 GbE and 25 GbE link speeds, enabling flexible network speed deployment based on infrastructure needs. With broad driver support and compatibility with leading operating systems and hypervisors, it is ideal for accelerating modern workloads requiring high network bandwidth and low latency.

Key Features – HPE 10/25Gb 2-Port SFP28 Ethernet Adapter

• Architecture: Mellanox MCX631102AS-DAT based adapter
• Network Speeds Supported:
 o 10 GbE (10GBASE-SR/LR)
 o 25 GbE (25GBASE-SR/LR)
• Ports:
 o 2 × SFP28 ports for 10G or 25G optics
• Form Factor:
 o Low-profile Ethernet adapter
• Interface:
 o PCIe Gen3 x8 for high throughput
• OS & Hypervisor Support:
 o Broad driver support for major Linux distros, VMware, and Windows Server
• Use Cases:
 o Virtualization traffic
 o High-performance computing networks
 o Storage networking and vSAN
 o High-bandwidth application clusters
• Efficiency:
 o Reduced CPU overhead
 o Enhanced throughput per core

Technical Specifications

• Model: MCX631102AS-DAT
• Ports: 2 × SFP28 (10/25Gb)
• PCIe Interface: PCIe Gen3 x8
• Network Standards: IEEE 802.3ca, 802.3by, 802.3ae compatible
• Data Rates: Up to 25 Gb per port
• Form Factor: Half-height / Low-profile adapter
• Latency: Low-latency design suitable for high-performance workloads

Physical Specifications

• Form Factor: Low-profile PCIe adapter
• Dimensions: Standard server PCIe adapter size
• Weight: Typical adapter card weight (lightweight)

Ideal For

• Cloud and virtualization environments
• High-performance computing clusters
• Storage networking (iSCSI, vSAN)
• High-bandwidth, low-latency network traffic
• Data centers and enterprise server networking

Warranty & Support

• Standard HPE manufacturer warranty
• Eligible for HPE support and service plans depending on region

FAQs – HPE 10/25Gb 2-Port SFP28 Ethernet Adapter (P42044-B21)

Q1: What speeds does this network adapter support?
A1: It supports 10 GbE and 25 GbE network speeds on its dual SFP28 ports, depending on the optics installed and network infrastructure.

Q2: What type of interface does this adapter use?
A2: It uses a PCIe Gen3 x8 interface to deliver high throughput and low latency.

Q3: What servers is this adapter compatible with?
A3: It is designed for HPE ProLiant servers and supported compute platforms that provide PCIe expansion and driver support.

Q4: What optics can be used with this adapter?
A4: Use standard SFP28 optics (10G and 25G compatible), selected based on network speed and reach requirements.

Q5: Is this adapter suitable for virtualization clusters?
A5: Yes — its high throughput and efficient design make it a good fit for virtualization, storage traffic, and high-performance network clusters.

Q6: Does it support mainstream operating systems?
A6: Yes — it has broad driver support for major Linux distributions, VMware ESXi, and Windows Server environments.