HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter
Brand: HPE | Category: Network Adapters & NICs
SKU: HPE-716591-B21 | Part #: 716591-B21 | MPN: 716591-B21
Contact for Pricing — Request a Quote
About the HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter
Optimized for enterprise-class throughput, the HPE 716591-B21 delivers advanced offload capabilities including TCP/UDP/IP checksum offload, Large Send Offload (LSO), Receive Side Scaling (RSS), and VMDq—enabling your infrastructure to process network traffic with minimal CPU overhead. This 2-port 10 Gigabit Ethernet adapter pairs an Intel X540 controller with dual RJ-45 connectors supporting auto-negotiating speeds from 10 Mbps to 10 Gbps, making it ideal for demanding workloads across virtualized and bare-metal environments. Whether you're architecting a storage-intensive cluster or optimizing hypervisor performance, the HPE Ethernet 10Gb 2-port 561T Adapter integrates seamlessly into your existing ProLiant infrastructure.
Network engineers and IT procurement teams will appreciate the adapter's broad compatibility with HPE ProLiant Gen8 and Gen9 servers via PCIe 2.0 x8 slots, combined with support for Windows Server 2008 R2, 2012, 2012 R2, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware ESXi. The low-profile form factor accommodates both standard and low-profile bracket configurations, while IEEE 802.3az Energy Efficient Ethernet (EEE) reduces power consumption during idle periods. NIC teaming via IEEE 802.3ad LACP and active-standby modes ensures redundancy and load balancing. Cabling flexibility extends to Cat 6a (55 m) or Cat 7 (100 m) runs. Management and firmware updates flow through HPE Insight software and HPE Service Pack for ProLiant (SPP), keeping your deployment current and compliant with FCC Class A, CE, and RoHS standards across operating temperatures from 0°C to 55°C.
Key Specifications
- Part Number: 716591-B21
- Controller: Intel X540
- Ports & Speed: 2 × RJ-45 (10GBase-T), supporting 10 Mbps / 100 Mbps / 1 Gbps / 10 Gbps auto-negotiation
- Host Interface: PCIe 2.0 x8
- Cabling: Cat 6a up to 55 m, Cat 7 up to 100 m
- Server Compatibility: HPE ProLiant Gen8 and Gen9 rack and tower servers
Contact Omnixon Global to request a quotation on the HPE 716591-B21 and other enterprise networking solutions.
Technical Specifications
| Brand | HPE |
| Category | Network Adapters & NICs |
| SKU | HPE-716591-B21 |
| Part Number | 716591-B21 |
| Condition | New |
| Capacity | 10GB |
| Form Factor | PCIe |
| Interface | Ethernet 10 Gb |
| Speed | 10 Gb/s per port |
| Manufacturer Part Number | 716591-B21 |
| Product Name | HPE Ethernet 10Gb 2-port 561T Adapter |
| Controller | Intel X540 |
| Number of Ports | 2 |
| Port Type | RJ-45 (10GBase-T) |
| Supported Speeds | 10 Mbps / 100 Mbps / 1 Gbps / 10 Gbps (auto-negotiating) |
| Host Interface | PCIe 2.0 x8 |
| Form Factor | Low-profile (standard bracket included; low-profile bracket included) |
| Cabling Standard | 10GBase-T; Cat 6a up to 55 m, Cat 7 up to 100 m |
| Offload Capabilities | TCP/UDP/IP checksum offload, Large Send Offload (LSO), Receive Side Scaling (RSS), VMDq |
| Energy Efficiency | IEEE 802.3az Energy Efficient Ethernet (EEE) |
| Operating System Support | Windows Server 2008 R2 / 2012 / 2012 R2, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi |
| HPE Server Compatibility | HPE ProLiant Gen8 and Gen9 rack and tower servers (PCIe 2.0 x8 slot required) |
| Management Integration | HPE Insight software; firmware and driver updates via HPE Service Pack for ProLiant (SPP) |
| NIC Teaming | Supports IEEE 802.3ad LACP, active-standby, and other teaming modes via OS/hypervisor teaming drivers |
| Operating Temperature | 0°C to 55°C |
| Compliance | FCC Class A, CE, RoHS |
Frequently Asked Questions about HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter
What does the HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter do?
The HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T 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 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter?
Key specifications for the HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter: form factor PCIe; interface Ethernet 10 Gb; 1 year manufacturer support; new condition. Manufacturer part number 716591-B21. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T Adapter compatible with my infrastructure?
The HPE 716591-B21 - HPE Ethernet 10Gb 2-port 561T 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.