DDR4 RDIMM 64GB · 2666 MT/s
Current asking prices
Median asking price
$750
Observed range
$100–$2,496
99 listings· 40 sellers· Updated Aug 28, 2026
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 component manufacturer's part, without OEM server-vendor branding or firmware lock. Typically the market pricing reference — platform compatibility should still be verified.
CompatibleThird-party alternatives meeting the same spec. Often 15–40% cheaper. May trigger vendor warnings on OEM-locked platforms — verify before substituting.
OEM Premium
-60%
OEM is currently priced 60% below original — unusual, worth investigating.
Market Spread
185%
Very wide spread. High volatility — verify condition and seller carefully.
Liquidity
High
99 samples. High confidence. This market has strong observed data.
▶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: high
$280.93 – $525
Typical market band
Observed range: $100 – $1470.35
Median: $358.68
32 listings • 4 SKU(s)
Median: $358.68
32 listings • 4 SKU(s)
Original
Confidence: high
$562.73 – $988.99
Typical market band
Observed range: $281.24 – $2496
Median: $891.08
67 listings • 16 SKU(s)
Median: $891.08
67 listings • 16 SKU(s)
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.
Known part numbers in this market
20 part numbers tracked. Not a guarantee of compatibility — verify against your platform.
| Manufacturer | MPN | Certification | |
|---|---|---|---|
| Crucial | CT64G4RFD4266 | Original | View SKU → |
| Dell | AA940924 | OEM | View SKU → |
| HPE | P00924-B21 | OEM | View SKU → |
| Kingston | KVR26R19D8/64 | Original | View SKU → |
| Lenovo | 4ZC7A08709 | OEM | View SKU → |
| Micron | MTA36ASF8G72PZ-2G6 | Original | View SKU → |
| Samsung | M393A8G40MB2 | Original | View SKU → |
| Samsung | M393A8G40MB2-CVF | Original | View SKU → |
| Samsung | M393A8G40MB2-CVF6Y | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFB0 | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFBQ | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFBY | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFBYM | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFCO | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFCQ | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFG0 | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFS | Original | View SKU → |
| Samsung | M393A8G40MB2-CVFSM | Original | View SKU → |
| SK Hynix | HMAA8GR7AJR4N-VK | Original | View SKU → |
| Supermicro | MEM-DR464L-CL01-ER26 | OEM | View SKU → |
Risk & compatibility signals
⚠
OEM lock risk
Dell and HPE parts in this market carry firmware locks. Compatible or generic parts may trigger vendor warnings on those platforms. Verify platform policy before substituting.
✓
Original manufacturer alternative
Original manufacturer parts are available in this market, with 67 observed listings — often a lower-cost path around OEM firmware locks. Platform-specific qualification should still be verified.
⚠
Wide price spread detected
185% spread across observed listings. This often reflects condition differences (new vs refurbished), varying warranty terms, or outlier sellers. Verify condition and seller reputation before purchasing.
Equivalent part numbers
Parts grouped into this market share the core market-class specifications, but exact server/platform compatibility should still be verified.
OEM-qualified equivalents
- AA940924 (Dell) — active
- P00924-B21 (HPE) — active
- 4ZC7A08709 (Lenovo) — active
- MEM-DR464L-CL01-ER26 (Supermicro) — active
Original manufacturer equivalents
- CT64G4RFD4266 (Crucial) — active
- KVR26R19D8/64 (Kingston) — active
- MTA36ASF8G72PZ-2G6 (Micron) — active
- M393A8G40MB2 (Samsung) — active
- M393A8G40MB2-CVF (Samsung) — active
- M393A8G40MB2-CVF6Y (Samsung) — active
- M393A8G40MB2-CVFB0 (Samsung) — active
- M393A8G40MB2-CVFBQ (Samsung) — active
- M393A8G40MB2-CVFBY (Samsung) — active
- M393A8G40MB2-CVFBYM (Samsung) — active
- M393A8G40MB2-CVFCO (Samsung) — active
- M393A8G40MB2-CVFCQ (Samsung) — active
- M393A8G40MB2-CVFG0 (Samsung) — active
- M393A8G40MB2-CVFS (Samsung) — active
- M393A8G40MB2-CVFSM (Samsung) — active
- HMAA8GR7AJR4N-VK (SK Hynix) — active
How to use this mapping
- If you were quoted any of the part numbers above, they correspond to this market.
- 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.
▶How to read OEM, Original, and Compatible
OEM parts carry vendor certification (and often firmware locks) — highest support assurance, highest price. Original parts are the underlying manufacturer's modules without OEM branding — usually the best balance of cost and compatibility. Compatible parts are third-party alternatives — lower cost, but verify against your platform's policies first.
Technical specifications
Parts grouped into this market share these core specifications. Exact manufacturer, branding, and warranty terms vary by SKU — see the part numbers below.
DDR generation
DDR4
Form factor
RDIMM
Capacity
64 GB
Speed
2666 MT/s
ECC
Yes
Status
active
High-liquidity large-capacity class
Data Sources
M4LVerified
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Verified contributors have a formal data relationship with MarketSignalIndex. Other observed sources are public listings with no affiliation.
Signals are observations from available data at a point in time — not advice. Verify independently before transacting. Disclaimer
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