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256GB DDR5 Server Memory
Key takeaways
- 112 listings match this collection right now.
- 3DS modules at this capacity can require explicit platform qualification beyond generic DDR5 RDIMM support, since the stacked-die rank count exceeds what a standard memory controller profile assumes.
- 256GB modules are what take a socket to multi-terabyte capacity, so the channel count of the platform, eight on Xeon Scalable and twelve on EPYC, sets the ceiling before the module does.
- These modules draw more power per slot than lower-capacity DDR5 RDIMM, so a platform's memory power budget has to support a full bank of them, not just its rated capacity.
256GB is the largest DDR5 module capacity in general circulation. These are 3DS (three-dimensional stacked) registered modules that behave as a single high-rank DIMM, and they are the route to 4TB per socket on sixteen-slot platforms. Many of these listings are quoted rather than priced online.
112 listings in this collection, filtered from Server Memory. The part number and manufacturer are stated on every listing, and the condition wherever the catalogue records one. For quantity, request a volume quote.
How to choose server memory
DDR3, DDR4 and DDR5 modules are keyed differently and do not interchange, so the generation your platform accepts comes first. Registered (RDIMM), load-reduced (LRDIMM) and unbuffered (UDIMM) modules cannot be mixed in one system: add the type already installed, or replace the full bank. Match rank and speed to the existing modules, and read an installed part number from iDRAC or iLO when in doubt.
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