PartsTable
Technical Data Sheet
850881-001 ✓ 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 32GB (1x32GB) 2RX4 PC4-21300V-R DDR4-2666MHZ RDIMM

HP 32GB (1x32GB) 2RX4 PC4-21300V-R DDR4-2666MHZ RDIMM. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-719-0841, 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 850881-001
NSN: 5962-01-719-0841
FSC: 5962
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number850881-001
ManufacturerHP
InterfaceDDR4
Capacity32GB
Speed2666MHz
NSN5962-01-719-0841
COMPONENT DIAGRAM
ECC 32GB 2Rx4 PC4 2666MHz RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 32GB | 2666MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 850881-001 MFR HP 32GB 2666MHz
KEY FEATURES
DDR4 Interface
32GB Capacity
2666MHz Speed
DDR4 RDIMM
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)
SPECIAL FEATURESREGISTERED SDRAM;OPERATED IN A DDR4 MODE;PACKAGED IN A DIMM;ORGANIZED AS 4G X 72 G
PART NAME ASSIGNED BY CONTROLLING AGENCYMICROCIRCUIT,MEMORY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
1XD86AACompatible
HP 32GB PC4-2666V-R ECC Reg Dr X4 Cas-19 Dimm - Intel - WS
compatible
1XD86ATCompatible
HP 32GB PC4-2666V-R ECC Reg Dr X4 Cas-19 Dimm - Intel - WS
compatible
815100-H21Compatible
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
compatible
815100-K21Compatible
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
compatible
815100-X21Compatible
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
compatible
840758-091Compatible
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
880841-B21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
882361-091SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
882448-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
L09276-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
L09286-850SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
L12129-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
L42293-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P00602-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P02892-B21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P04177-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P05590-B21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P05590-X21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P06185-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P13627-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P18445-B21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P26140-001SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
P28221-B21SUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
Q1V92ASUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
Q2D32ASUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
1XD86AASUBSTITUTE
HP 32Gb PC4-2666V-R ECC REG DR x4 CAS-19 DIMM - Intel - G10
HPE
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FREQUENTLY ASKED QUESTIONS
What is 850881-001?
850881-001 is a HP 32GB (1x32gb) 2Rx4 Pc4-21300V-R DDR4-2666MHZ RDIMM manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 850881-001?
There are 12 known substitutes for 850881-001: 1XD86AA, 1XD86AT, 815100-H21 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 850881-001?
850881-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-719-0841. This indicates validated use in U.S. government and defense supply chains.
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