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
A Hewlett Packard Enterprise equivalent 32 GB Dual rank- registered ECC DDR4 SDRAM - DIMM 288-pin 2666 MHz (PC4-21300) from Hypertec NOTE: This memory meets the memory specification requirements for reliable operation within a HP Generation 8 (or 9) server- but is not SmartMemory and does not identify as SmartMemory when installed or deliver SmartMemory specific features. from Hypertec This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-671-8231, indicating validated use in U.S. government and defense logistics supply chains.
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FREQUENTLY ASKED QUESTIONS
What is 815100-B21?
815100-B21 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 815100-B21?
There are 12 known substitutes for 815100-B21: 1XD86AA, 1XD86AT, 815100-H21 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 815100-B21?
815100-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-671-8231. This indicates validated use in U.S. government and defense supply chains.
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