HPE 811546-B21 Ethernet 1Gb 4-Port 366T Adapter

• Server network expansion – Adds four physical Ethernet connections without replacing the server's existing networking.
• Virtualization hosts – Provides additional physical interfaces for separating VM, management, storage, backup, or production traffic.
• Network segmentation – Supports physically separated network connections for different infrastructure functions.
• Redundant networking – Four ports provide additional interfaces for network redundancy and failover configurations.
• LACP deployments – IEEE 802.3ad support enables compatible switch/server configurations using link aggregation. 
• PXE provisioning – PXE capability supports network-based server deployment and operating-system provisioning.
• Data-center server upgrades – Adds Gigabit Ethernet connectivity to compatible HPE ProLiant systems.
• Legacy 1GbE infrastructure – Provides a practical adapter option where existing switching infrastructure remains Gigabit Ethernet based.
• Management-network separation – Additional physical ports can be allocated to dedicated management or operational networks.
• HPE server replacement projects – Provides an OEM-specific option when replacing or expanding a supported 366T/I350-T4V2 configuration.

• Brand: HPE
• Product Number: 811546-B21
• Product Family: HPE Ethernet 1Gb 4-port 366T / I350-T4V2
• Product Type: Server Ethernet Adapter / NIC
• Network Controller: Intel I350
• Port Count: 4
• Port Type: RJ-45 BASE-T
• Port Speed: 10/100/1000 Mbps per port
• Maximum Port Rate: 1Gbps per port
• Host Interface: PCI Express 2.1 x4
• Form Factor: Stand-up PCIe adapter
• Bracket Support: Full-height and low-profile
• Connectivity: Wired Ethernet
• VLAN: IEEE 802.1Q
• Link Aggregation: IEEE 802.3ad
• Flow Control: IEEE 802.3x
• Jumbo Frames: Supported
• PXE: Supported
• Load Balancing: Supported
• Fault Tolerance: Supported
• Energy Efficient Ethernet: IEEE 802.3az
• Time Synchronization: IEEE 1588, IEEE 802.1as
• Remote Management: SNMP
• Status Indicators: Link/activity and port transmission speed
• Maximum Power: 5.5W
• Supported Cable: Cat6A / RJ-45

Why Choose This Product?

• Four physical network ports – Expands connectivity without consuming multiple single-port adapters.
• Intel I350 architecture – Provides a server-oriented controller for compatible HPE infrastructure.
• Flexible network design – Four ports can be allocated across production, management, backup, virtualization, or other network functions.
• Standard RJ-45 connectivity – Fits conventional copper Ethernet infrastructure and avoids requiring optical transceivers.
• Low-profile installation option – Improves deployment flexibility in compatible space-constrained server chassis.
• Enterprise networking features – VLAN, LACP, PXE, jumbo frames, load balancing, and fault-tolerance capabilities support varied server-network designs.
• Low maximum power draw – The 5.5W maximum specification supports power-conscious server expansion planning. 
• OEM HPE identification – The exact 811546-B21 SKU simplifies procurement, replacement matching, and configuration management.