HPE P31348-B21

Overview

The HPE P31348-B21 is a dual-port network adapter designed to deliver up to 200Gb per second throughput using InfiniBand HDR or Ethernet protocols. It fits into a PCIe 4.0 x16 slot and features QSFP56 connectors, providing HPE ProLiant DL Gen10 Plus servers with the bandwidth and low latency needed for demanding workloads. Each port supports 100Gb per second, or both can be combined for 200Gb per second when link aggregation is enabled, making it a strong choice for high-performance computing and enterprise data centers.

Key features

• Dual-port design allows flexible use of 100Gb per second per port or aggregated 200Gb throughput for enhanced network performance
• Selectable operation between InfiniBand HDR and Ethernet to match your network fabric and application requirements
• PCIe 4.0 x16 interface ensures maximum data transfer rates between the adapter and server motherboard
• Compact OCP 3.0 form factor fits efficiently into modern server trays without sacrificing expansion options
• Compatibility with both direct-attach copper and active optical cables offers flexibility in cabling based on distance and budget
• Reduces the number of required network switches compared to 100Gb setups, simplifying management and lowering power consumption
• Backed by a three-year warranty from HPE, providing reliability for continuous, high-duty cycle operation

Key specs

• Throughput: up to 200Gb per second aggregated across two ports
• Interface: PCIe 4.0 x16
• Connector type: QSFP56
• Form factor: OCP 3.0 small form factor
• Dimensions: 21.49 x 24.69 x 6.2 cm
• Weight: 0.44 kg

Connectivity and compatibility

This adapter supports both InfiniBand HDR and Ethernet protocols, allowing it to integrate seamlessly into various high-speed network environments. The QSFP56 connectors support 100Gb per port speeds and can be linked for 200Gb throughput when your network fabric supports link aggregation. It works with direct-attach copper cables for short distances and active optical cables for longer runs, giving you the flexibility to tailor your setup to your data center’s layout and budget.

Ideal uses and environments

The HPE P31348-B21 excels in high-performance computing clusters where low latency and high bandwidth are critical, such as simulations, genomic analysis, and large-scale data analytics. It also fits well in enterprise data centers running real-time financial modeling, AI training, or latency-sensitive virtualized workloads. By upgrading to 200Gb per second, organizations can reduce switch counts, which simplifies network management and decreases power consumption, making it a practical choice for data centers aiming to optimize both performance and operational costs.

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