Detailed Specifications
HPE Q2P91A Ethernet 10Gb 2-Port 530T Adapter
Overview
The HPE Q2P91A is a dual-port 10 Gigabit Ethernet RJ-45 copper adapter designed for servers needing high-speed uplinks and consolidation of network traffic. It uses CAT6A (or better) cabling to deliver full line-rate 10GBASE-T performance, making it suitable for virtualised infrastructure and storage-rich environments. The adapter is intended for 1U/2U rack servers and integrates into HPE ProLiant systems via a PCI Express slot, aligning well with data-centre or private-cloud deployments. It supports advanced offload, teaming, and SR-IOV features to streamline deployment and reduce host CPU overhead.
Key Features
Two 10 Gb/s RJ-45 copper ports (10GBASE-T) over standard UTP cabling
PCI Express 2.0 x8 host interface compatible with HPE server PCIe slots
Supports jumbo-frames (up to ~9,000 bytes) for large data-transfer efficiency
Hardware offload including RSS, MSI-X, TX/RX checksum and segmentation offload
Low-profile and full-height bracket included, for flexible server installation
Technical Specifications
| Specification | Details |
|---|
| Brand | HPE |
| Part Number | Q2P91A |
| Product Type | Ethernet 10 Gb 2-Port 530T Adapter |
| Network Adapter | 2 × 10 Gb/s RJ-45 (10GBASE-T) ports |
| Host Interface | PCI Express 2.0 x8 |
| Chipset | Broadcom BCM57810S |
| Cable Support | CAT6A UTP or better for full 10 Gb/s up to 100 m |
| Jumbo Frame Support | Up to ~9,000 bytes |
| Power Consumption | Max 9 W (typical 15.5 W, max ~18.2 W per datasheet) |
| Operating Temperature | 0 °C to +55 °C |
| Compliance Standards | IEEE 802.3, 802.3x, 802.1Qbb, 802.1Qaz, 802.1Qau, others |
| Supported Features | SR-IOV ready, teaming, PXE boot, hardware offloads |
| Form Factor | Plug-in PCIe adapter, low-profile / full-height bracket |
| Cable Distance | Up to 30 m on CAT6 UTP, 100 m on CAT6A |
| Supported Server Systems | HPE ProLiant Gen8 (and similar configurations) |
