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 PC4-21300 DDR4-2666MHZ
The HP 16GB Pc4-21300 DDR4-2666MHZ is a HP memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-685-9418, 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→879507-B21
NSN:5998-01-685-9418 FSC:5998 — CIRCUIT CARD ASSEMBLY CAGE:28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number
879507-B21
Manufacturer
HP
Interface
DDR4
Capacity
16GB
Speed
2666MHz
NSN
5998-01-685-9418
COMPONENT DIAGRAM
KEY FEATURES
•
DDR4 Interface
•
16GB Capacity
•
2666MHz Speed
•
DDR4 Memory
TYPICAL APPLICATIONS
Server memory expansion for virtualization workloads
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FREQUENTLY ASKED QUESTIONS
What is 879507-B21?
879507-B21 is a HP 16GB Pc4-21300 DDR4-2666MHZ manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 879507-B21?
There are 2 known substitutes for 879507-B21: P06773-001, 879527-091. Substitute compatibility should be verified for your specific system.
What is the NSN for 879507-B21?
879507-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-685-9418. This indicates validated use in U.S. government and defense supply chains.
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