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817753-B21 — Network Technical Data

✓ Government record, cited
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
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx) for DX Servers

HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx) for DX Servers. This part is cataloged in the U.S. Government catalog under NSN 6099-01-726-6685, 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
817753-B21
NSN: 6099-01-726-6685
FSC: 6099 — Miscellaneous Fiber Optic Components
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number817753-B21
ManufacturerHPE
Capacity25GB
NSN6099-01-726-6685
BROWSE HPE MACHINES
ProLiant DL360 Gen10 ProLiant DL380 Gen10 ProLiant BL460c Gen10 ProLiant DL380 Gen9 ProLiant DL360 Gen9 3PAR StoreServ 8450 ProLiant BL685c G7 3PAR StoreServ 8400 3PAR StoreServ 8440 3PAR StoreServ 8200 MSA 2052 SAN Storage ProLiant BL460c Gen9
All HPE machines and parts
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 817753-B21 MFR HPE HP 817753-B21 HP 817753-B21 ETHERNET 10/
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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES10/25GB 2-PORT 640SFP28 ADAPTER GB
PART NAME ASSIGNED BY CONTROLLING AGENCYETHERNET ADAPTER
OTHER ITEMS IN FSC 6099 — Miscellaneous Fiber Optic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6099-01-173-5977 6099-01-248-3426 6099-01-297-7048 6099-01-311-1862 6099-01-311-1863 6099-01-311-1864 6099-01-311-1865 6099-01-311-1866
SUBSTITUTES & CROSS-REFERENCES 4
817753R-B21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
840140-001CompatiblePARTNER
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx)
compatible
817751-001CompatiblePARTNER
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx)
compatible
P18462-B21CompatiblePARTNER
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx) for DX Servers
compatible
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
THIS PART SUBSTITUTES FOR 3
P18462-B21SUBSTITUTE
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx)
HPE
817751-001SUBSTITUTE
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx)
HPE
840140-001SUBSTITUTE
HP NIC 640SFP28 10/25GbE 2-Port PCI-E-3.0x8 Ethernet Controller (Mellanox ConnectX-4 Lx)
HPE
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FREQUENTLY ASKED QUESTIONS
What is 817753-B21?
817753-B21 is a HP 817753-B21 HP 817753-B21 ETHERNET 10/25GB 2P 640SFP28 ADP. HP 817753-B21 Technical Details: Brand: HP Part Number: 817753-B21 Condition: Used R2v3 Cosmetic Code: Used Good R2v3 Functional Code: F4 Fully Tested R2v3 Controlled Status: Controlled R2v3 Data Sanitization: Non-Data Device Check out used HP ProCurve switches for cost-effective, enterprise-ready network hardware. Why Buy HP hardware from Alta Technologies? With over 1.3 million systems and parts in stock, Alta offers unparalleled inventory selection and expertise. Our dedicated HP product team, led by Andrew Riedl, provides expert testing and exceptional support. We offer competitive bulk discounts, fast same-day shipping, and even buy-back options for your Servers and HBAs Network Adapters equipment. Contact information: Andrew Riedl HP Product Manager Phone: 763.475.5344 Email: [email protected] manufactured by HPE.
What parts can replace 817753-B21?
There are 4 known substitutes for 817753-B21: 817753R-B21, 840140-001, 817751-001 and 1 more. Substitute compatibility should be verified for your specific system.
Is 817753-B21 still available?
817753-B21 is currently Unknown.
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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.