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PartsTable / NETWORK / 879666-001
879666-001 ✓ Verified by PartsTable
HP · NETWORK · 25GBE_NIC
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 Ethernet 10/25GB 2-PORT SFP28 Card. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
NETWORK→ 25GBE_NIC→ 879666-001
SPECIFICATIONS
Part Number879666-001
ManufacturerHP
Capacity25GB
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 879666-001 MFR HP HP Ethernet 10/25GB 2-PORT SFP28 Card
KEY FEATURES
•
25GB 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 1
870825-B21Compatible
HP NIC 661SFP28 25GbE 2-Port PCI-E-3.0x8 Ethernet Controller
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
870825-B21SUBSTITUTE
HP NIC 661SFP28 25GbE 2-Port PCI-E-3.0x8 Ethernet Controller
HPE
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FREQUENTLY ASKED QUESTIONS
What is 879666-001?
879666-001 is a HP Ethernet 10/25GB 2-PORT SFP28 Card manufactured by HP. It is classified as a NETWORK (25GBE_NIC).
What parts can replace 879666-001?
There is 1 known substitute for 879666-001: 870825-B21. Substitute compatibility should be verified for your specific system.
Is 879666-001 still available?
879666-001 is currently Unknown.
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Last verified: July 2026