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Technical Data Sheet
816551-001 ✓ Verified by PartsTable
HPE · ACCESSORY · ADAPTER
WHAT YOU NEED TO KNOW
RJ45 = copper (needs CAT6) | SFP+ = fiber (needs transceiver) FLR = FlexibleLOM (HPE integrated) — NOT standard PCIe
Bracket height MUST match chassis — Full Height (2U) vs Low Profile (1U)
PRODUCT OVERVIEW

Ethernet 1Gb 4-port 366T adapter - Has four 10/100/1000BASE-T RJ45 ports - Requires one x4 (Gen2) PCI Express slot (compatible with x4, x8 and x16 PCI Express slots) - Requires CAT5 or better twisted-pair. Key specifications include Generation: Gen2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-687-8854, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
ACCESSORY ADAPTER 816551-001
NSN: 5998-01-687-8854
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: F9865 — HEWLETT-PACKARD FRANCE (FRA)
SPECIFICATIONS
GenerationGen2
NSN5998-01-687-8854
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 4-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 816551-001 MFR HPE Ethernet 1Gb 4-port 366T adapter - Has f
KEY FEATURES
1GB Capacity
Gen2 Generation
FUNCTIONAL DESCRIPTION: ETHERNET NETWORK ADAPTER
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH5.3 INCHES NOMINAL IN
FUNCTIONAL DESCRIPTIONETHERNET NETWORK ADAPTER
PART NAME ASSIGNED BY CONTROLLING AGENCYETHERNET 1 GB 4-PORT 366T ADAPTER GB
SPECIAL FEATURES4-PORT 366T ETHERNET 1000- RJ-45 PORTS; DATA TRANSFER RATE : 1 GBPS, CONNECT DESKTOP AND SERVER SYSTEMS TO THE NETWORK; REMOTE MANAGEMENT PROTOCOL: SNMP; PROCESSOR: 1 X I350.; MIN OPERATING TEMPERATURE: 32 DEGREES F. MAX OPERATING TEMPERATURE: 131 DEGREES F. GBPS
OVERALL HEIGHT2.7 INCHES NOMINAL IN
OVERALL LENGTH5.3 INCHES NOMINAL IN
FUNCTIONAL DESCRIPTIONETHERNET NETWORK ADAPTER
PART NAME ASSIGNED BY CONTROLLING AGENCYETHERNET 1 GB 4-PORT 366T ADAPTER GB
SPECIAL FEATURES4-PORT 366T ETHERNET 1000- RJ-45 PORTS; DATA TRANSFER RATE : 1 GBPS, CONNECT DESKTOP AND SERVER SYSTEMS TO THE NETWORK; REMOTE MANAGEMENT PROTOCOL: SNMP; PROCESSOR: 1 X I350.; MIN OPERATING TEMPERATURE: 32 DEGREES F. MAX OPERATING TEMPERATURE: 131 DEGREES F. GBPS
OVERALL HEIGHT2.7 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
811546-B21Compatible
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
compatible
811544-001Compatible
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
compatible
P18460-B21Compatible
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350) for DX Servers
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
P18460-B21SUBSTITUTE
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
HPE
811544-001SUBSTITUTE
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
HPE
811546-B21SUBSTITUTE
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
HPE
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FREQUENTLY ASKED QUESTIONS
What is 816551-001?
816551-001 is a Ethernet 1Gb 4-port 366T adapter - Has four 10/100/1000BASE-T RJ45 ports - Requires one x4 (Gen2) PCI Express slot (compatible with x4, x8 and x16 PCI Express slots) - Requires CAT5 or better twisted-pair manufactured by HPE. It is classified as a ACCESSORY (ADAPTER).
What parts can replace 816551-001?
There are 3 known substitutes for 816551-001: 811546-B21, 811544-001, P18460-B21. Substitute compatibility should be verified for your specific system.
What is the NSN for 816551-001?
816551-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-687-8854. This indicates validated use in U.S. government and defense supply chains.
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