HPEP08446-B21

Ethernet 10 Gb 2-Port 524SFP+ Gigabit Ethernet Adapter

The HPEP08446-B21×also known as the 524SFP+ dual-port adapter×is a high-performance 10 Gigabit Ethernet card providing two SFP+ ports via optical interfaces. Powered by the Mellanox ConnectX-4 Lx controller (QL41401-A2G), it delivers full line-rate throughput while minimizing CPU load with advanced offloads. Ideal for virtualization, cloud workloads, and high-speed storage, it brings reliable, low-latency connectivity to HPE ProLiant Gen10 servers and beyond

Features

This PCIe 3.0 ×8 plug-in adapter employs two SFP+ ports to support optical fiber connections, offering backward compatibility with 1/2.5/5/10 GbE via auto-negotiation. Key virtual networking protocols such as VXLAN, NVGRE, GENEVE, and RDMA (RoCE, RoCEv2, iWARP) are supported, enhancing VM migration and storage offloads. The adapter also supports SR-IOV, RSS, VMQ, and DPDK for optimized multi-tenant and cloud performance

Advanced Options

Engineered for dense virtualization and high-throughput workloads, this adapter delivers sustained 10 Gbps on each port with ultra-low latency. The ConnectX-4 Lx chipset offloads many CPU tasks, improving overall VM performance and host efficiency.

Product Key Features

• 2 × 10 GbE SFP+ ports (optical fiber)
  

• Mellanox ConnectX-4 Lx (QL41401-A2G) network processor
  

• PCI Express 3.0 ×8 host interface
  

• Virtualization offloads: SR-IOV, RSS, VMQ, DPDK, tunnel offloading
  

• RDMA support: RoCE, RoCEv2, iWARP for low-latency traffic
  

• Secure boot and firmware integrity features for compliance

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Reliability & Performance

Tunnel offloads and secure networking protocols provide scalability without overhead. Supported by thermal-aware firmware and integrated with HPEmanagement standards, it's optimized for use in ProLiant Gen10 platforms and ensures long-term stability under high-load conditions

Key Features :

• • Dual optical SFP+ ports for 10 GbE fiber links

  • PCIe 3.0 ×8 plug-in adapter format

  • Mellanox ConnectX-4 Lx QL41401-A2G chipset

  • Supports jumbo frames up to ~9.6 KB MTU

  • Offload: SR-IOV, RSS, VMQ, DPDK, tunnel acceleration

  • RDMA protocols: RoCE, RoCEv2, iWARP support

  • Security features: secure boot, firmware signing

  • Compatible with HPESea of Sensors for thermal management

  • LED indicators: link/activity, status

  • Compatible brackets: full height & low-profile

Specification	Details
Model Number	P08446-B21
Product Type	10 GbE Dual-Port SFP+ Fiber Gigabit Ethernet Adapter
Controller / Chipset	Mellanox ConnectX-4 Lx (QL41401-A2G)
Host Interface	PCI Express 3.0 ×8
Ports	2 × 10 GbE via SFP+
Supported Media	Optical fiber (SFP+ modules)
Throughput	Up to 10 Gbps per port
Jumbo Frame Support	Up to ~9,600-byte MTU
Virtualization Features	SR-IOV, VMQ, RSS, DPDK, tunnel offload (VXLAN/NVGRE/GENEVE)
RDMA Support	RoCE, RoCEv2, iWARP
Security	Secure boot, signed firmware
LED Indicators	Link/activity, status
Compatibility	ProLiant Gen10/Gen10+ servers, ML350, DL380, etc.
Weight & Form Factor	~290 g; full-height & low-profile included
Operating Temperature	0 °C to 55 °C
Standards Compliance	IEEE 802.3ae, 802.1Q, 802.3ad, QoS, IPv6, LACP, more