HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter
Brand: HPE | Category: Network Adapters & NICs
SKU: HPE-656596-B21 | Part #: 656596-B21 | MPN: 656596-B21
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About the HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter
The HPE Ethernet 10Gb 2-port 530T Adapter delivers dual 10 Gbps ports in a compact, enterprise-class network interface card built for HPE ProLiant Gen8 server infrastructure. Powered by the Intel 82599 network controller and equipped with 10GBASE-T (RJ-45 copper) connectivity, this adapter—model 656596-B21—enables high-speed data transfer across Cat6a (up to 55 m) or Cat7 (up to 100 m) cabling without requiring optical transceivers. The low-profile form factor with included LP bracket ensures compatibility in dense server environments, while optional standard bracket support provides deployment flexibility across blade, rack-mount, multi-socket, and sled server platforms.
Network architects and IT infrastructure teams will value the advanced offload capabilities that reduce CPU overhead: TCP, UDP, and iSCSI checksum offload, Large Send Offload (LSO), and Receive Side Scaling (RSS) distribute processing efficiently across cores. HPE iLO integration, HPE Intelligent Provisioning, and Smart Update Manager (SUM) streamline deployment and lifecycle management within the HPE ecosystem. The adapter supports SR-IOV virtualization, IEEE 802.1Q VLAN tagging, and runs on Windows Server 2008 R2/2012/2012 R2, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware vSphere ESXi. Operating across 10°C to 55°C and backed by CE, FCC Class A, and RoHS certification, the 656596-B21 combines proven reliability with enterprise-grade management integration.
Platform Compatibility & Deployment Scenarios
- HPE ProLiant Gen8 blade servers (BL series) for high-density virtualized workloads requiring low-profile adapters
- HPE ProLiant Gen8 rack-mount and multi-socket servers (DL, ML series) in converged infrastructure environments
- Sled-based deployments (SL series) with dual 10 Gbps uplinks for scale-out clusters
- iSCSI and NAS environments leveraging hardware checksum offload and TCP optimization
- VMware vSphere ESXi clusters using SR-IOV for VM-level network isolation and performance
Contact Omnixon Global to request a quotation for HPE 656596-B21 adapters and integrated deployment planning.
Technical Specifications
| Brand | HPE |
| Category | Network Adapters & NICs |
| SKU | HPE-656596-B21 |
| Part Number | 656596-B21 |
| Condition | New |
| Capacity | 10GB |
| Form Factor | PCIe |
| Interface | Ethernet 10 Gb |
| Speed | 10 Gb/s per port |
| Manufacturer Part Number | 656596-B21 |
| Product Name | HPE Ethernet 10Gb 2-port 530T Adapter |
| Network Controller | Intel 82599 |
| Number of Ports | 2 |
| Port Type | 10GBASE-T (RJ-45 copper) |
| Data Transfer Rate | 10 Gbps per port |
| Ethernet Standards | 10GBASE-T (IEEE 802.3an) |
| Cable Type | Cat6a (up to 55 m), Cat7 (up to 100 m) |
| Host Interface | PCIe 2.0 x8 |
| Form Factor | Low-profile (LP bracket included; standard bracket optional) |
| Virtualization | SR-IOV (Single Root I/O Virtualization) |
| Offload Engines | TCP, UDP, iSCSI checksum offload; Large Send Offload (LSO); Receive Side Scaling (RSS) |
| VLAN Support | IEEE 802.1Q VLAN tagging |
| Operating System Support | Windows Server 2008 R2/2012/2012 R2, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware vSphere ESXi |
| Server Compatibility | HPE ProLiant Gen8 servers (BL, DL, ML, SL series) |
| Management Integration | HPE iLO, HPE Intelligent Provisioning, HPE Smart Update Manager (SUM), Service Pack for ProLiant (SPP) |
| Operating Temperature | 10°C to 55°C |
| Storage Temperature | -40°C to 70°C |
| Regulatory Compliance | CE, FCC Class A, RoHS |
Frequently Asked Questions about HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter
What does the HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter do?
The HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter?
Key specifications for the HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter: form factor PCIe; interface Ethernet 10 Gb; 1 year manufacturer support; new condition. Manufacturer part number 656596-B21. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter compatible with my infrastructure?
The HPE 656596-B21 - HPE Ethernet 10Gb 2-port 530T Adapter interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.