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HPE

HPE P41636-B21 | 10/25GbE 4x SFP28 PCIe 4.0 x16 Adapter | Intel E810 | SR‑IOV, VXLAN/GENEVE offload, RoCEv2, PTP

SKU:P41636-B21

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Description

High-density 4-port 10/25GbE SFP28 server adapter built on the Intel E810 controller. Delivers flexible media options (DAC, AOC, optical), advanced virtualization with SR‑IOV, modern tunneling offloads, and deterministic timing via IEEE 1588v2. Ideal for consolidating bandwidth-hungry workloads and accelerating east‑west traffic in virtualized and containerized environments.

Features

4x 10/25GbE SFP28 ports for high port density in a single adapter
- PCIe 4.0 bandwidth for low latency and high throughput
- SR‑IOV and advanced tunneling offloads to accelerate virtual networking
- PTP (IEEE 1588v2) support for precise time synchronization
- Flexible media support: DAC, AOC, and optical modules

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Can I run 10GbE optics/DACs in the SFP28 ports?
A: Yes. SFP28 ports are backward compatible with 10G SFP+ optics and DACs when set to 10GbE.

Q: Does this adapter support SR‑IOV for virtualization?
A: Yes, SR‑IOV is supported when enabled in the system BIOS and operating system.

Q: What PCIe slot do I need?
A: Use a PCIe Gen4 x16 slot for full bandwidth. It is backward compatible with lower generations at reduced throughput.

Q: Is RDMA supported?
A: Yes, RoCEv2 is supported where enabled by the OS and driver stack.

Q: Which media types are compatible?
A: SFP28 DAC/AOC cables and 10G/25G optical transceivers that meet IEEE standards and platform qualifications.

Technical Specifications

Port configuration: 4x SFP28
- Line rate per port: 10/25 GbE auto‑negotiation
- Controller: Intel E810 (XXV family)
- Host interface: PCI Express 4.0 x16 (backward compatible)
- Media: SFP28 cages; supports DAC, AOC, and 25G/10G optical modules
- Virtualization: SR‑IOV, RSS, VMDq
- Offloads: TSO/LRO/Checksum, VXLAN/NVGRE/GENEVE, receive side scaling
- RDMA: RoCE v2 (where supported)
- Time sync: IEEE 1588v2 PTP/802.1AS
- Jumbo frames: up to 9K (platform/OS dependent)
- OS support: Broad Linux, Windows Server, and hypervisor support (driver dependent)

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