DDR5 RDIMM 256GB Memory

Observed market signals for this memory class — aggregated across sellers and SKU tiers. Use the bands below to benchmark quotes before you commit. Pro subscribers see the exact clearing prices.

Signals are observations from available data at a point in time — not advice. Verify independently before transacting. Disclaimer

Data as of Apr 17, 2026

You’re likely on the right page if:

  • You’re sourcing this memory class
  • You have an OEM or manufacturer part number
  • You want a fair market price benchmark

This may not be the right page if:

  • You require vendor-locked firmware only
  • Your platform disallows third-party memory

Market signals

Derived from observed listings across all SKUs in this class.

▶What do OEM / Original / Compatible mean?
OEMCertified by a server vendor (Dell, HPE, Lenovo). May carry firmware locks and qualifications. Priced higher for vendor support and warranty alignment.
OriginalThe underlying DRAM/component manufacturer module (Samsung, Micron, SK Hynix). Works across most platforms without vendor lock. The market pricing reference.
CompatibleThird-party alternatives meeting the same spec. Often 15–40% cheaper. May trigger vendor warnings on OEM-locked platforms — verify before substituting.
Liquidity
Insufficient
Only 0 samples — treat any range as directional only.
▶What do the signal colors mean?
Favorable — Tight spread, meaningful discount, or strong liquidity.
Neutral — Normal market conditions. No action flag.
Investigate — Wide spread, inverted pricing, or low sample count.
High alert — Very wide spread or significant price anomaly.
Insufficient — Too few samples to produce a reliable signal.

Market price confidence

The figures below reflect observed market pricing across multiple sellers and SKUs. Ranges and typical bands help distinguish outliers from defensible market prices.

OEM
Confidence: low
OEM pricing is typically negotiated directly with vendors and is not reflected in spot market listings.
Original
Confidence: low
Pricing inferred from adjacent market tiers
OEM and original parts are rarely transacted directly in open markets.
Compatible
Confidence: low
Pricing inferred from adjacent market tiers
OEM and original parts are rarely transacted directly in open markets.

How to interpret this

  • Prices within the typical market band represent common, defensible market rates.
  • Listings near the lower bound may reflect limited stock, condition differences, or less-established sellers.
  • Prices above the typical band often reflect vendor qualification, warranty, or support premiums.

SKU comparison

These SKUs map to this product class. Canonical pages link down; SKU pages link up.

BrandMPNCertificationLifecycle

Equivalent part numbers

The following part numbers are considered functionally equivalent for this memory class. Differences between them relate to vendor qualification, branding, warranty, or support.
Core functionality is the same.

How to use this mapping

  • If you were quoted any of the part numbers above, they correspond to this canonical memory class.
  • OEM-qualified parts offer the highest vendor support assurance and typically cost more.
  • Original manufacturer parts often provide the best balance of cost and compatibility.
  • Compatible alternatives may reduce cost but should be verified against platform policies.

What this product represents

This page represents a canonical memory class: a group of memory modules that are considered functionally equivalent for procurement and deployment purposes.

Any SKU listed on this page matches the core technical requirements below and can typically be used interchangeably, subject to platform compatibility and vendor policies.

What must match

  • DDR generation: DDR5
  • Form factor: RDIMM
  • Capacity: 256 GB
  • ECC: Required

What may vary safely

  • Exact manufacturer (Samsung, Micron, Hynix, etc.)
  • OEM branding or labeling
  • Speed grade within supported range (5600–5600 MT/s)
  • Warranty terms and seller support

Technical specifications (reference)

  • DDR generation: DDR5
  • Form factor: RDIMM
  • Capacity: 256 GB
  • Supported speed range: 5600–5600 MT/s
  • Status: coming_soon
  • Notes: Ultra-high capacity; sparse secondary market

Other server memory market classes

Compare signals across related DDR4 and DDR5 memory classes.

DDR4 RDIMM 16GB Memory→DDR4 RDIMM 16GB Memory→DDR4 RDIMM 16GB Memory→DDR4 RDIMM 16GB Memory→DDR4 RDIMM 32GB Memory→DDR4 RDIMM 32GB Memory→DDR4 RDIMM 32GB Memory→DDR4 RDIMM 32GB Memory→DDR4 RDIMM 64GB Memory→DDR4 RDIMM 64GB Memory→DDR4 RDIMM 64GB Memory→DDR4 LRDIMM 64GB Memory→DDR4 LRDIMM 64GB Memory→DDR4 LRDIMM 64GB Memory→DDR4 LRDIMM 128GB Memory→DDR4 LRDIMM 128GB Memory→DDR4 LRDIMM 128GB Memory→DDR5 RDIMM 32GB Memory→DDR5 RDIMM 32GB Memory→DDR5 RDIMM 32GB Memory→DDR5 RDIMM 48GB Memory→DDR5 RDIMM 48GB Memory→DDR5 RDIMM 64GB Memory→DDR5 RDIMM 64GB Memory→DDR5 RDIMM 64GB Memory→DDR5 RDIMM 96GB Memory→DDR5 RDIMM 96GB Memory→DDR5 RDIMM 96GB Memory→DDR5 RDIMM 128GB Memory→DDR5 RDIMM 128GB Memory→DDR5 RDIMM 128GB Memory→DDR5 RDIMM 256GB Memory→DDR5 RDIMM 256GB Memory→DDR5 LRDIMM 64GB Memory→DDR5 LRDIMM 128GB Memory→DDR5 MRDIMM 64GB Memory→DDR5 MRDIMM 128GB Memory→DDR3 RDIMM 8GB Memory→DDR3 RDIMM 8GB Memory→DDR3 RDIMM 8GB Memory→DDR3 RDIMM 16GB Memory→DDR3 RDIMM 16GB Memory→DDR3 RDIMM 16GB Memory→DDR3 RDIMM 32GB Memory→DDR3 RDIMM 32GB Memory→DDR3 RDIMM 32GB Memory→DDR4 UDIMM 8GB Memory→DDR4 UDIMM 8GB Memory→DDR4 UDIMM 8GB Memory→DDR4 UDIMM 16GB Memory→DDR4 UDIMM 16GB Memory→DDR4 UDIMM 16GB Memory→DDR4 UDIMM 32GB Memory→DDR4 UDIMM 32GB Memory→DDR4 UDIMM 32GB Memory→DDR5 UDIMM 16GB Memory→DDR5 UDIMM 16GB Memory→DDR5 UDIMM 32GB Memory→DDR5 UDIMM 32GB Memory→

How to interpret these tiers

OEM

OEM parts are certified for a specific server vendor and may carry firmware locks, qualification, and higher warranties. They often price higher due to supportability and vendor validation.

Original

Original parts are the underlying manufacturer modules (e.g. Samsung/Micron/Hynix) that may be used across multiple platforms. They can offer strong compatibility without the OEM premium.

Compatible

Compatible parts are third-party alternatives that match the canonical spec. They may be cheaper but can trigger OEM warnings or have varying validation—always verify compatibility for your target platform.