PartsTable
Technical Data Sheet
651281-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 QMH2572 8GB FIBRE CHANNEL HOST BUS ADAPTER

The HP QMH2572 8Gb Fibre Channel Host Bus Adapter for BladeSystem c-Class is a PCI Express based Type A mezzanine card compatible with Gen8 server blades. 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 5998-01-625-2070, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
NETWORK FC_HBA 651281-B21
NSN: 5998-01-625-2070
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number651281-B21
ManufacturerHP
Capacity8GB
NSN5998-01-625-2070
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 651281-B21 MFR HP HP QMH2572 8GB Fibre Channel Host Bus Ad
KEY FEATURES
8GB Capacity
FEATURES PROVIDED: ELECTROSTATIC SENSITIVE
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)
FEATURES PROVIDEDELECTROSTATIC SENSITIVE
OVERALL LENGTH3.9 MILLIMETERS NOMINAL MM
OVERALL WIDTH3.5 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYHP QMH2572 8GB FIBER CHANNEL HOST BUS GB
FEATURES PROVIDEDELECTROSTATIC SENSITIVE
OVERALL LENGTH3.9 MILLIMETERS NOMINAL MM
OVERALL WIDTH3.5 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYHP QMH2572 8GB FIBER CHANNEL HOST BUS GB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
656452-001Compatible
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
compatible
652144-001Compatible
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
compatible
659822-001Compatible
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
652144-001SUBSTITUTE
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
HPE
656452-001SUBSTITUTE
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
HPE
659822-001SUBSTITUTE
HP FC 8Gb 2-Port PCI-E (Gen I x8, Gen II x4) QLogic QMH2572 BL-c Module
HPE
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FREQUENTLY ASKED QUESTIONS
What is 651281-B21?
651281-B21 is a HP QMH2572 8GB Fibre Channel Host Bus Adapter manufactured by HP. It is classified as a NETWORK (FC_HBA).
What parts can replace 651281-B21?
There are 3 known substitutes for 651281-B21: 656452-001, 652144-001, 659822-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 651281-B21?
651281-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-625-2070. This indicates validated use in U.S. government and defense supply chains.
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