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Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R8GA0PB0-CWM, 1 Module

Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R8GA0PB0-CWM, 1 Module

Bottom line: The Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category, priced around $2,841.00 on Amazon as of 2026-10-21 04:14 UTC. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$2841.00

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Buy on Amazon — $2,841.00 Compare to similar memory & ram

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Samsung DDR5 Memory RAM | Part Number: M321R8GA0PB0-CWM

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

Brand:SamsungPart Number:M321R8GA0PB0-CWMMemory Type:DDR5Memory Size:Single 64 GB ModuleForm Factor:DIMM ( 288 Pin )ECC Type:ECC-RDIMM ( Registered DIMM )Speed:5600 MHz (PC5-44800/PC5-5600)Rank:2Rx4 (EC8, 10x4), Dual Rank x4Voltage:1.1VCompatible for Server systems ONLY; NOT COMPATIBLE with Desktop Computers, Laptop Computers, or PCs of any kind

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SpecPicks Verdict

SpecPicks scored Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual… using a rating × review-volume × price-fit model applied to published specs and reviews across the memory & ram category. Compare with similarly-priced alternatives in the memory & ram category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for memory & ram of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Samsung DDR5 Memory RAM | Part Number: M321R8GA0PB0-CWM
  • Single 64 GB RAM Module; DDR5 DIMM 288-Pin; Speeds up to 5600 MHz, PC5-44800 (PC5-5600B)
  • ECC Registered RDIMM; 2Rx4 (EC8, 10x4); JEDEC DDR5 standard 1.1V
  • Compatible for select Server systems ONLY; NOT COMPATIBLE with Desktop Computers, Laptop Computers, or PCs of any kind
  • Note: EC8 (10x4) ECC Registered modules cannot be mixed with EC4 (9x4) ECC Registered modules or with different ECC types such as ECC Unbuffered, ECC Load Reduced or Non-ECC Unbuffered; (Memory compatibility can vary among different system models and their installed components; please verify compatibility and follow memory channel guidelines to ensure maximum performance)
  • Expands your system's available memory resource improving performance, reducing bottlenecks, and increasing workload capacity

Full Specifications

BrandSamsung
Voltage1.1 volts
RAM Size64 GB
Model NameM393
Unit Count1 Count
Form FactorDIMM
Memory Speed5600 MHz
Model NumberM321R8GA0PB0-CWM
Item Type Namecomputer-internal-memory
Number of Pins288
Mfr Part NumberM321R8GA0PB0-CWM
Number of Items1
Number of Packs1
Memory GenerationDDR5
Compatible DevicesServer
Data Transfer Rate44800 megabytes_per_second
Memory Form FactorRDIMM
Additional FeaturesEcc
Computer Memory Size64 GB
Warranty DescriptionLimited Lifetime Warranty covering defects in materials and workmanship

Ready to buy?

Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R8GA0PB0-CWM, 1 Module is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $2,841.00

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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Samsung 64GB DDR5 5600MHz PC5-44800 ECC RDIMM 2Rx4 (EC8 10x4) Dual Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R8GA0PB0-CWM, 1 Module
$2,841.00
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