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Technical Data Sheet
590863-B21 ✓ Verified by PartsTable
HPE · 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 BLc3000 DDR2 Onboard Administrator Rotate LCD Kit. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7050-01-632-0988, 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 590863-B21
NSN: 7050-01-632-0988
FSC: 7050
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number590863-B21
ManufacturerHPE
NSN7050-01-632-0988
COMPONENT DIAGRAM
ECC 2Rx4 PC4 RDIMM HPE NOTCH ~133.35 mm DDR4 RDIMM | — | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 590863-B21 MFR HPE — —
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESONBOARD ADMINISTRATOR
END ITEM IDENTIFICATIONE3 4045 775-90272-1
PART NAME ASSIGNED BY CONTROLLING AGENCYCOMPUTER SUBASSEMBLY
SPECIAL FEATURESONBOARD ADMINISTRATOR
END ITEM IDENTIFICATIONE3 4045 775-90272-1
PART NAME ASSIGNED BY CONTROLLING AGENCYCOMPUTER SUBASSEMBLY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
599668-001Interchangeable
HP BLC3000 DDR2 onboard administrator LCD kit
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
THIS PART SUBSTITUTES FOR 1
599668-001SUBSTITUTE
HP BLc3000 Onboard Administrator DDR2 Rotate LCD Module
HPE
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FREQUENTLY ASKED QUESTIONS
What is 590863-B21?
590863-B21 is a HP BLc3000 DDR2 Onboard Administrator Rotate LCD Kit manufactured by HPE. It is classified as a MEMORY (RDIMM).
What parts can replace 590863-B21?
There is 1 known substitute for 590863-B21: 599668-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 590863-B21?
590863-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7050-01-632-0988. This indicates validated use in U.S. government and defense supply chains.
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