HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter
Brand: HPE | Category: Network Adapters & NICs
SKU: HPE-811546-B21 | Part #: 811546-B21 | MPN: 811546-B21
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About the HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter
The HPE 811546-B21 Ethernet 1Gb 4-port 366T Adapter operates over a PCIe 2.1 x4 interface, delivering the host connectivity and bandwidth allocation needed for reliable multi-port network expansion in enterprise server environments. This low-profile, half-height form factor fits seamlessly into HPE ProLiant Gen9 and Gen10 rack, tower, and blade servers, making it an ideal choice for network engineers and IT procurement teams standardizing on genuine HPE hardware.
Built on the Intel I350-T4 network controller, the 811546-B21 provides four RJ-45 ports, each delivering 1 Gigabit Ethernet throughput across 10BASE-T, 100BASE-TX, and 1000BASE-T standards. Advanced offload capabilities—including TCP/UDP/IP checksum offload, TSO/LSO, RSS, VMQ, and NetQueue—reduce CPU overhead while IEEE 802.1Q VLAN support and IEEE 802.3ad link aggregation enable flexible network segmentation and redundancy. The adapter supports jumbo frames up to 9.5 KB and integrates with HPE iLO, Intelligent Provisioning, and HPE SPP firmware updates for streamlined deployment and lifecycle management. Certified for Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, and VMware vSphere, this genuine HPE option kit meets CE, FCC, and UL regulatory requirements.
Typical Enterprise Deployment Scenarios
- High-availability database clusters requiring redundant 1GbE uplinks with LACP link aggregation across multiple physical paths
- Virtual infrastructure environments where per-VM network isolation and VLAN tagging reduce broadcast domains and improve security posture
- Legacy and modernized workload consolidation, supporting both traditional TCP/UDP checksum offload and modern RSS-based load balancing
- Rack-scale deployments where low-profile adapters maximize slot density without sacrificing network capacity
- HPE ProLiant server refresh cycles where genuine option kits simplify firmware alignment and warranty integration
For technical specifications, compatibility validation, and volume pricing on the HPE 811546-B21, contact Omnixon Global today to submit an RFQ.
Technical Specifications
| Brand | HPE |
| Category | Network Adapters & NICs |
| SKU | HPE-811546-B21 |
| Part Number | 811546-B21 |
| Condition | New |
| Capacity | 1GB |
| Form Factor | PCIe |
| Interface | Ethernet 1 Gb |
| Speed | 1 Gb/s per port |
| Manufacturer Part Number | 811546-B21 |
| Product Name | HPE Ethernet 1Gb 4-port 366T Adapter |
| Network Controller | Intel I350-T4 |
| Number of Ports | 4 |
| Port Speed | 1 Gigabit Ethernet (1GbE) |
| Ethernet Standards Supported | 10BASE-T, 100BASE-TX, 1000BASE-T |
| Connector Type | RJ-45 |
| Host Interface | PCIe 2.1 x4 |
| Form Factor | Low-profile, half-height |
| VLAN Support | IEEE 802.1Q |
| Link Aggregation | IEEE 802.3ad (LACP) |
| Offload Capabilities | TCP/UDP/IP checksum offload, TSO/LSO, RSS, VMQ, NetQueue |
| Jumbo Frames | Supported (up to 9.5 KB) |
| Operating System Support | Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware vSphere |
| Compatible Server Platforms | HPE ProLiant Gen9 and Gen10 rack, tower, and blade servers |
| Systems Management Integration | HPE iLO, Intelligent Provisioning, HPE SPP firmware updates |
| Regulatory Compliance | CE, FCC, UL |
| HPE Option Type | Genuine HPE Option Kit |
Frequently Asked Questions about HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter
What does the HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter do?
The HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T 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 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter?
Key specifications for the HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter: form factor PCIe; interface Ethernet 1 Gb; 1 year manufacturer support; new condition. Manufacturer part number 811546-B21. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T Adapter compatible with my infrastructure?
The HPE 811546-B21 - HPE Ethernet 1Gb 4-port 366T 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.