PartsTable
Technical Data Sheet
708641-B21 ✓ Verified by PartsTable
HP · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW
HP 16GB (1X16GB) DUAL RANK X4 PC3-14900R DDR3-1866

HP 16GB (1X16GB) DUAL RANK X4 PC3-14900R DDR3-1866. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-645-8866, 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
MEMORY RDIMM 708641-B21
NSN: 7025-01-645-8866
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number708641-B21
ManufacturerHP
InterfaceDDR3
Capacity16GB
NSN7025-01-645-8866
COMPONENT DIAGRAM
ECC 16GB 2Rx4 PC3 RDIMM HP NOTCH ~133.35 mm DDR3 RDIMM | 16GB | — | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 708641-B21 MFR HP 16GB —
KEY FEATURES
DDR3 Interface
16GB Capacity
DDR3 Memory
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYHP 16GB (1X16GB) DUAL RANK X4 PC3-14900R (DDR3-1866) REGISTERED CAS-13 MEMORY KIT GB
END ITEM IDENTIFICATIONDL380P(28480), GEN8 NTCSS VE SERVER; DL380P(28480) HI END, GEN8 NTCSS SERVER
PART NAME ASSIGNED BY CONTROLLING AGENCYHP 16GB (1X16GB) DUAL RANK X4 PC3-14900R (DDR3-1866) REGISTERED CAS-13 MEMORY KIT GB
END ITEM IDENTIFICATIONDL380P(28480), GEN8 NTCSS VE SERVER; DL380P(28480) HI END, GEN8 NTCSS SERVER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
715274-001Compatible
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
compatible
712383-081Compatible
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
compatible
712383-08HCompatible
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
compatible
766989-B21Compatible
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 for DL380z G8
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
E2Q95AASUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
712383-081SUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
712383-08HSUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
712383-581SUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
715274-001SUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
733482-001SUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
766989-B21SUBSTITUTE
HP 16Gb PC3-14900R 1866Mhz ECC REG DR x4 CAS-13 DIMM - Intel v2 - G8
HPE
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FREQUENTLY ASKED QUESTIONS
What is 708641-B21?
708641-B21 is a HP 16GB (1x16gb) Dual Rank X4 Pc3-14900r DDR3-1866 manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 708641-B21?
There are 4 known substitutes for 708641-B21: 715274-001, 712383-081, 712383-08H and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 708641-B21?
708641-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-645-8866. This indicates validated use in U.S. government and defense supply chains.
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