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811546-B21 — HP 811546-B21 HPE ETHERNET 1GB 4-PORT 366T A Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 811546-B21

✓ Government record, cited
HPE · NIC ADAPTER
PRODUCT OVERVIEW
CIRCUIT CARD ASSEMBLY

811546-B21: HP 811546-B21 HPE ETHERNET 1GB 4-PORT 366T A Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 811546-B21.

The HP 811546-B21 HPE ETHERNET 1GB 4-PORT 366T A Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 811546-B21 is a HPE networking component designed for high-speed data center interconnects and enterprise network infrastructure. Key specifications include SPECIAL FEATURES: CIRCUIT CARD ASSEMBLY, ETHERNET GB, CU, 4X 366T, END ITEM IDENTIFICATION: ENROUTE AUTOMATION MODERNIZATION (ERAM). This part is cataloged in the U.S.

Government catalog under NSN 5998-01-662-5095, 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
811546-B21
NSN: 5998-01-662-5095
FSC: 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
CAGE: 1TCB3 — HEWLETT-PACKARD COMPANY (USA)
SPECIFICATIONS
SPECIAL FEATURESCIRCUIT CARD ASSEMBLY, ETHERNET GB, CU, 4X 366T
END ITEM IDENTIFICATIONENROUTE AUTOMATION MODERNIZATION (ERAM)
NSN5998-01-662-5095
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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 811546-B21 MFR HPE HP 811546-B21 HPE ETHERNET 1GB 4-PORT 36
KEY FEATURES
•
1GB Capacity
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
SPECIAL FEATURESCIRCUIT CARD ASSEMBLY, ETHERNET GB, CU, 4X 366T
END ITEM IDENTIFICATIONENROUTE AUTOMATION MODERNIZATION (ERAM)
OTHER ITEMS IN FSC 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5998-00-000-0087 5998-00-000-0089 5998-00-000-0154 5998-00-000-0173 5998-00-000-0175 5998-00-000-0177 5998-00-001-1267 5998-00-001-1271
SUBSTITUTES & CROSS-REFERENCES 3
816551-001CompatiblePARTNER
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
compatible
811544-001CompatiblePARTNER
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350)
compatible
P18460-B21CompatiblePARTNER
HP NIC 366T 1GbE RJ-45 4-Port PCI-E-2.1x4 Ethernet Controller (Intel I350) for DX Servers
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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
816551-001SUBSTITUTE
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 811546-B21?
811546-B21 is a HP 811546-B21 HPE ETHERNET 1GB 4-PORT 366T A Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 811546-B21 manufactured by HPE.
What parts can replace 811546-B21?
There are 3 known substitutes for 811546-B21: 816551-001, 811544-001, P18460-B21. Substitute compatibility should be verified for your specific system.
What is the NSN for 811546-B21?
811546-B21 is cataloged in the U.S. Government catalog under NSN 5998-01-662-5095. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.