What type of network adapter is the HPE 656596-B21?

The HPE 656596-B21 is the HPE Ethernet 10Gb 2-port 530T Adapter. It is categorized as a PCIe 2.0 x8 10GBASE-T dual-port 10GbE RJ-45 server adapter, designed for enterprise environments where 10 Gigabit Ethernet connectivity is required on copper cabling.

How many Ethernet ports does the HPE 530T Adapter provide?

The HPE Ethernet 10Gb 2-port 530T Adapter offers two Ethernet ports. It is specifically described as a dual-port 10GbE RJ-45 server adapter, giving servers two 10GBASE-T connections from a single card for flexible network design and consolidation of interfaces.

Which interface does the HPE 656596-B21 adapter use in the server?

The HPE 656596-B21 adapter uses a PCIe 2.0 x8 interface. It is listed in the category Network Adapter, PCIe 2.0 x8 10GBASE-T, which means it is intended for installation in compatible PCI Express 2.0 x8 server slots to provide 10Gb Ethernet connectivity.

What cabling type is supported by this 10Gb adapter?

This product is a 10GBASE-T dual-port 10GbE RJ-45 server adapter, which indicates support for twisted-pair copper cabling terminated with RJ-45 connectors. The 10GBASE-T designation identifies it as a copper-based 10 Gigabit Ethernet solution rather than a fiber-based adapter.

Is the HPE Ethernet 10Gb 2-port 530T Adapter suitable for enterprise use?

Yes, the adapter is explicitly identified with an enterprise product level. Combined with its dual-port 10GbE RJ-45 10GBASE-T design and PCIe 2.0 x8 interface, it is positioned for deployment in enterprise server environments that require reliable 10Gb Ethernet connectivity.

656596-B21 - HPE 656596-B21 10Gb 2-port 530T Adapter network adapter

Name: HPE 656596-B21 10Gb 2-port 530T Adapter network adapter
Brand: HPE
SKU: 656596-B21
Price: 218 USD
Availability: InStock

656596-B21 - HPE 656596-B21 10Gb 2-port 530T Adapter network adapter | US IT Hardware

Product overview

The HPE Ethernet 10Gb 2-port 530T Adapter 656596-B21 is an enterprise network adapter designed for servers that require reliable 10 Gigabit Ethernet connectivity. As a dual-port 10GBASE-T adapter, it provides two 10GbE RJ-45 interfaces for copper-based networking in data center and enterprise environments. The adapter uses a PCIe 2.0 x8 interface, aligning with modern server expansion standards and offering ample bandwidth for 10GbE workloads. Its dual-port design enables flexible network configurations, including separation of traffic types or increased aggregate throughput within a single PCIe slot. Positioned as an enterprise-level solution, this adapter is suitable for environments where consistent, high-speed network access is a core requirement. The 530T model designation clearly identifies it within HPE’s Ethernet adapter portfolio for customers standardizing on specific adaptor families.

HPE Ethernet 10Gb 2-port 530T enterprise adapter
Dual-port 10GbE RJ-45 10GBASE-T connectivity
PCIe 2.0 x8 server network adapter form factor
SKU 656596-B21 for consistent procurement
Designed as a dual-port 10GbE server adapter
Enterprise-level 10Gb Ethernet network adapter

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Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	656596-B21
Brand	HPE
Condition	Refurbished
Model	HPE Ethernet 10Gb 2-port 530T Adapter
Series	530T
Bus Type	PCI Express 2.0 x8
Data Rate	10 Gb/s per port; 20 Gbps full duplex per port; 40 Gbps aggregate full duplex theoretical bandwidth
Cable Type	Ethernet 1000Base-T; Ethernet 10GBase-T; CAT6; CAT6A UTP
Part Class	HPE option kit
Technology	10GBASE-T Ethernet
Form Factor	Plug-in card

Compatible systems

Option kit 656596-B21 is an HPE 530T dual-port 10GBASE-T adapter for selected ProLiant DL and ML servers.

HPE ProLiant DL
Model: DL380 Gen9; DL380 Gen10; DL360 Gen9; DL360 Gen10; DL580 Gen10; DL560 Gen10; DL120 Gen9; DL160 Gen9; DL180 Gen9; DL20 Gen10; DL360e Gen8; DL360p Gen8; DL380e Gen8; DL380p Gen8; DL388 Gen9; DL60 Gen9; DL80 Gen9
Form factor: Rack servers
Listed as compatible with these HPE ProLiant DL servers for option part 656596-B21.
HPE ProLiant ML
Model: ML110 Gen10; ML150 Gen9; ML350 Gen10; ML350 Gen9; ML350e Gen8; ML350p Gen8
Form factor: Tower servers
Listed as compatible with these HPE ProLiant ML servers for 656596-B21.

Best for

Enterprise servers
Suitable for enterprise server environments that require an Ethernet 10Gb 2-port 530T Adapter with dual 10GBASE-T RJ-45 connectivity and PCIe 2.0 x8 interface.
Dual-port 10GbE connectivity
Useful where two 10Gb Ethernet RJ-45 connections are needed on a single adapter, enabling flexible network segmentation or higher aggregate throughput.
PCIe 2.0 x8 server slots
Designed for servers equipped with PCIe 2.0 x8 slots, allowing integration of 10GBASE-T networking into existing PCIe-based infrastructures.

Details

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Product Line	HPE Ethernet Adapters

Product Type	Network adapter

RAM Installed	256 MB integrated buffer memory

Onboard Memory	256 MB

Processor Brand	Broadcom

Supported Features	Extended MSI-X; Jumbo Frames; PXE support; Receive Side Scaling (RSS); Tagged VLAN; TCP/IP offload; NIC teaming

Compatible Slot Type	1 x PCI Express 2.0 x8

Power Characteristic	Low power consumption design

Line Rate Performance	Full line-rate performance across all ports

Product Differentiator	Dual-port 10GBASE-T adapter with TCP/IP offload

Connectivity Technology	Wired

Compliant IEEE Standards	IEEE 802.1AX; IEEE 802.1Q; IEEE 802.1Qau; IEEE 802.1Qaz; IEEE 802.1Qbb; IEEE 802.1Qbg; IEEE 802.3; IEEE 802.3ad; IEEE 802.3x

Aggregate Bandwidth	40 Gbps full duplex theoretical

Networking Ports & Interfaces

Ports	2 x 10GBASE-T RJ-45
Connector Type	RJ-45 (two ports)
Host Interface	PCI Express 2.0 x8
Network Processor	Broadcom BCM57810S
Interface Provided	10GBase-T RJ-45
Network & Adapter Ports	Dual-port 10Gb Ethernet
Supported Network Protocols	10 Gigabit Ethernet; Gigabit Ethernet

HPE 656596-B21 10Gb 2-port 530T Adapter network adapter