Detailed Specifications
HPE 656596-B21 - Ethernet 10Gb 2-Port 530T Adapter
Overview :
The HPE 656596-B21 is a dual-port 10GBASE-T network adapter designed for data centre and virtualised server environments. Engineers deploying this adapter use it to provide high-speed 10 Gb/s copper Ethernet connectivity over CAT6A UTP cabling, reducing network bottlenecks in dense compute racks. The adapter supports full line-rate traffic on both ports and offers features such as jumbo frame support, NIC teaming and hardware offloads for aggregated server traffic. It is typically installed in rack or tower servers, such as HPE ProLiant Gen8/Gen9 systems, and is suitable for campus aggregation or edge server network uplinks. Integration with HPE server management frameworks like Sea of Sensors helps maintain thermal and power efficiency under heavy network loads.
Key Features :
Dual RJ-45 ports with 10GBASE-T up to 100 m cable length
PCI Express 2.0 x8 form factor with full-height and low-profile support
Full line-rate throughput across both ports (~40 Gb/s aggregate)
Network virtualization support including SR-IOV, VMQ, NPAR
Hardware acceleration of TCP/IP offload, jumbo frames and RSS
Specifications :
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | 656596-B21 |
| Product Type | Ethernet 10Gb 2-Port 530T Adapter |
| Interface Type | PCIe v2.0 x8 |
| Ports | 2 × RJ-45 10GBASE-T |
| Maximum Cable Distance | Up to 100 m over CAT6A UTP |
| Data Rate | 10 Gb/s per port (≈20 Gb/s full duplex) |
| Chipset | Broadcom BCM57810S |
| Power Consumption | 9 W maximum |
| Operating Temperature | 0 °C to 55 °C (32 °F to 131 °F) |
| Supported Features | Jumbo frames, VLAN tagging, NIC teaming |
| Virtualization Support | SR-IOV, VMQ, NPAR |
| Form Factor | Standard height & low-profile brackets |
| Cable Type | CAT6 UTP or better |
| Weight | ~0.2 lbs (≈0.1 kg) |
