Name: HP 665240-B21 HP Ethernet 1GB 4-port 366FLR Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 665240-B21,669280-001
Brand: HPE
SKU: 665240-B21

665240-B21 ✓ Verified by PartsTable

HPE · NIC 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

The HP 665240-B21 HP Ethernet 1GB 4-port 366FLR Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 665240-B21,669280-001 is a HPE networking component designed for high-speed data center interconnects and enterprise network infrastructure. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-651-6913, 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

665240-B21

NSN: 5998-01-651-6913
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)

SPECIFICATIONS

Part Number	665240-B21
Manufacturer	HPE
Capacity	1GB
NSN	5998-01-651-6913

COMPONENT DIAGRAM

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

VERIFIED SUBSTITUTES & CROSS-REFERENCES 5

665240-B21Interchangeable

HP 665240-B21 HP Ethernet 1GB 4-port 366FLR Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 665240-B21,669280-001

interchangeable

669280-001Compatible

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

compatible

665238-001Compatible

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

compatible

684217-B21Compatible

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2) FIO

compatible

P18459-B21Compatible

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2) for DX Servers

compatible

LIFECYCLE

StatusACTIVE

AvailabilityOEM and secondary market

RoHS CompliantEAR99ESD SensitiveNot HAZMAT

THIS PART SUBSTITUTES FOR 4

P18459-B21SUBSTITUTE

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

HPE

665238-001SUBSTITUTE

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

HPE

669280-001SUBSTITUTE

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

HPE

684217-B21SUBSTITUTE

HP NIC 366FLR 1GbE RJ-45 4-Port PCI-E-2.0x4 Ethernet FlexibleLOM (Intel I350-T4V2)

HPE

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FREQUENTLY ASKED QUESTIONS

What is 665240-B21?

665240-B21 is a HP 665240-B21 HP Ethernet 1GB 4-port 366FLR Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 665240-B21,669280-001 manufactured by HPE.

What parts can replace 665240-B21?

There are 5 known substitutes for 665240-B21: 665240-B21, 669280-001, 665238-001 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 665240-B21?

665240-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-651-6913. This indicates validated use in U.S. government and defense supply chains.

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