What system interface does the Ethernet 1Gb 4-port 366T Adapter use?

The adapter is categorized as a PCI Express 2.1 x4 Ethernet Adapter. This indicates it connects to the host system through a PCIe 2.1 slot using four lanes. When planning deployments, IT teams should ensure that the target server has an available PCIe slot compatible with a 2.1 x4 card to fully accommodate the adapter.

Is the HPE 816551-001 suitable for low-profile server installations?

Yes, the product category describes it as a Quad-port 1GbE RJ45 PCIe 2.0 low-profile NIC. The low-profile designation indicates that the card is intended for systems that support low-profile expansion cards, which are common in dense rack servers and compact chassis. This makes it appropriate for space-constrained server environments.

What type of cabling is used with the Ethernet 1Gb 4-port 366T Adapter?

The adapter is described as a Quad-port 1GbE RJ45 PCIe 2.0 low-profile NIC, which means it uses RJ45 connectors for its four 1Gb Ethernet ports. RJ45 interfaces are designed for standard copper twisted-pair cabling typically used in 1Gb Ethernet networks, allowing easy integration with existing copper-based infrastructure.

How is the Ethernet 1Gb 4-port 366T Adapter identified for procurement?

For ordering and inventory control, the adapter is identified by the SKU 816551-001 and the model description Ethernet 1Gb 4-port 366T Adapter. Using this specific SKU in procurement systems helps ensure the correct quad-port 1GbE RJ45 PCIe 2.0 low-profile NIC is sourced and matched with approved server configurations.

816551-001 - HPE Hewlett Packard Enterprise 816551-001 1Gb 4-port adapter

Name: HPE Hewlett Packard Enterprise 816551-001 1Gb 4-port adapter
Brand: HPE
SKU: 816551-001
Price: 195 USD
Availability: InStock

816551-001 - HPE Hewlett Packard Enterprise 816551-001 1Gb 4-port adapter | US IT Hardware

Product overview

The Hewlett Packard Enterprise Ethernet 1Gb 4-port 366T Adapter with SKU 816551-001 is designed as a quad-port 1GbE RJ45 PCIe Ethernet adapter for enterprise network environments. Classified under Network Adapter, PCI Express 2.1 x4 Ethernet Adapter and Quad-port 1GbE RJ45 PCIe 2.0 low-profile NIC, it provides four 1Gb Ethernet connections to support multiple network segments or redundant paths. As a low-profile PCIe solution, this adapter is suitable for space-constrained systems that require standard 1Gb connectivity. It enables IT teams to consolidate multiple 1Gb links on a single adapter while maintaining a familiar RJ45 copper interface. The 366T model designation identifies it as part of the HPE Ethernet 1Gb adapter family, allowing straightforward identification within standardized server configurations and spares inventories that reference the 816551-001 part.

Quad-port 1GbE RJ45 low-profile PCIe NIC
PCI Express 2.1 x4 Ethernet adapter interface
Supports four separate 1Gb Ethernet connections
Standard RJ45 connectors for 1Gb copper links
Designed as Ethernet 1Gb 4-port 366T Adapter
HPE SKU 816551-001 for consistent sourcing

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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 #	816551-001
Brand	HPE
Condition	Refurbished
Model	Ethernet 1Gb 4-port 366T Adapter
Form Factor	Plug-in card, low profile
Adapter Name	HP 366T 1Gb 4-Port PCI Ethernet Adapter
Product Line	HPE Ethernet 1Gb 4-port 366T Adapter
Product Type	Network adapter
Product Category	Network cards and network controllers
Spare Part Number	816551-001
PCI Express Generation	PCIe Gen2 x4 (compatible with x4, x8 and x16 PCI Express slots)

Best for

Virtualized servers
Use the Ethernet 1Gb 4-port 366T Adapter 816551-001 to provide multiple 1Gb RJ45 connections on a single PCI Express 2.1 x4 low-profile NIC in virtualized host servers.
Network segmentation
Leverage the quad-port 1GbE RJ45 design to separate management, storage, and production traffic using the Ethernet 1Gb 4-port 366T Adapter.
Redundant links
Deploy multiple 1Gb ports on the 366T Adapter for link redundancy, using its four 1Gb RJ45 interfaces to maintain connectivity during individual link failures.
Dense rack servers
The low-profile PCIe form factor and quad-port 1GbE capability make the 816551-001 suitable for dense rack servers needing several 1Gb copper connections.
Branch office connectivity
Provide reliable 1GbE RJ45 network access in branch or remote office servers with a single quad-port Ethernet 1Gb 4-port 366T Adapter.

Frequently asked questions

How many network connections does the HPE 816551-001 adapter provide?

Details

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Networking Ports & Interfaces

Port Type	10/100/1000BASE-T RJ45
Port Count	4 ports
Ethernet Ports	4 x RJ45 10/100/1000BASE-T ports
Host Interface	PCI Express 2.1 x4 slot (Gen2, x4, x8, x16 compatible)
Data Link Protocol	Ethernet; Fast Ethernet; Gigabit Ethernet
Interface (bus) Type	PCI Express 2.1 x4
Maximum Ethernet Speed	1 Gb/s per port
Supported Ethernet Standards	10BASE-T; 100BASE-TX; 1000BASE-T