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Technical Data Sheet
PartsTable / NETWORK / 451871-B21
451871-B21 ✓ Verified by PartsTable
HP · NETWORK · FC_HBA
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
HP 8GB FIBRE CHANNEL HOST BUS ADAPTER C-CLASS BLADESYSTEM

The QMH2562 is a PCI Express based 8Gb Fibre Channel mezzanine card for the HP c-Class BladeSystem that delivers twice the data throughput as the previous generation 4Gb mezzanine card. It is optimized for virtualization, low power usage, management, security, reliability, availability and serviceability. While providing leading edge 8Gb performance, it is also backward compatible with 4Gb and 2Gb Fibre Channel speeds.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-625-4066, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
NETWORK→ FC_HBA→ 451871-B21
NSN: 5895-01-625-4066
FSC: 5895
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number451871-B21
ManufacturerHP
Capacity8GB
NSN5895-01-625-4066
COMPONENT DIAGRAM
NIC CTRL PHY 0 PHY 1 ROM VRM SFP+ SFP+ LINK ACT PCIe x8 ~167 mm NETWORK ADAPTER | 2-PORT 10GbE | SFP+ | Full Height PCIe x8 | Link/Activity LEDs | PXE boot ROM TITLE NIC ADAPTER PN 451871-B21 MFR HP HP 8GB Fibre Channel Host Bus Adapter C-
KEY FEATURES
•
8GB 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 (FLIS)
END ITEM IDENTIFICATIONE-3G 4045 MRSP DGS G
PART NAME ASSIGNED BY CONTROLLING AGENCYHP FIBRE CHANNEL HB
END ITEM IDENTIFICATIONE-3G 4045 MRSP DGS G
PART NAME ASSIGNED BY CONTROLLING AGENCYHP FIBRE CHANNEL HB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
455869-001Compatible
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2562 BL-c Module
compatible
451872-001Compatible
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2562 BL-c Module
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
451872-001SUBSTITUTE
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2562 BL-c Module
HPE
455869-001SUBSTITUTE
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2562 BL-c Module
HPE
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FREQUENTLY ASKED QUESTIONS
What is 451871-B21?
451871-B21 is a HP 8GB Fibre Channel Host Bus Adapter C-Class Bladesystem manufactured by HP. It is classified as a NETWORK (FC_HBA).
What parts can replace 451871-B21?
There are 2 known substitutes for 451871-B21: 455869-001, 451872-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 451871-B21?
451871-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5895-01-625-4066. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026