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Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R2GA3BB6-CQK

Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R2GA3BB6-CQK

Bottom line: The Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V is a specs-and-price decision rather than a crowd-consensus one in the memory & ram category, priced around $699.00 on Amazon as of 2026-10-07. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

$699.00

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Buy on Amazon — $699.00 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 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Samsung DDR5 Memory RAM | Part Number: M321R2GA3BB6-CQK

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:M321R2GA3BB6-CQKMemory Type:DDR5Memory Size:Single 16 GB ModuleForm Factor:DIMM ( 288 Pin )ECC Type:ECC-RDIMM ( Registered DIMM )Speed:4800 MHz ( PC5-38400 / PC5-4800 )Rank:1Rx8 - Single Rank x8Voltage:1.1VCompatible for select DDR5 Servers and Workstations *Not Compatible for Desktop or Laptop computers*

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SpecPicks Verdict

SpecPicks scored Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V… 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: M321R2GA3BB6-CQK
  • Single 16 GB Module; DDR5 DIMM 288-Pin; Speeds up to 4800 MHz, PC5-38400 (PC5-4800B)
  • ECC Registered RDIMM; 1Rx8 (Single Rank x8); JEDEC DDR5 standard 1.1V
  • Compatible for select DDR5 Servers and Workstations; *Not Compatible with Desktop or Laptop Computers*
  • Note: This memory is ECC Registered and cannot be mixed with different ECC types such as ECC Unbuffered, ECC Load Reduced, or Non-ECC Unbuffered; (Refer to your system's manual for memory seating and channel guidelines)
  • Expands your system's available memory resource improving performance, reducing bottlenecks, and increasing workload capacity

Full Specifications

BrandSamsung
Voltage1.1 Volts
RAM Size16 GB
Model NameM321R2GA3BB6-CQK
Unit Count1.0 Count
Form FactorDIMM
Memory Speed4800 MHz
Model NumberM321R2GA3BB6-CQK
Item Type Namecomputer-internal-memory
Number of Pins288
Mfr Part NumberM321R2GA3BB6-CQK
Memory GenerationDDR5
Compatible Devices4th Gen AMD EPYC, 4th Gen Intel Xeon, Server
Data Transfer Rate38400 Megabytes Per Second
Memory Form FactorRDIMM
Additional FeaturesEcc
Computer Memory Size16 GB
Warranty DescriptionLimited Warranty
RAM Memory TechnologyDDR5
Column Address Strobe Latency40

Ready to buy?

Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R2GA3BB6-CQK 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 — $699.00

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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Samsung 16GB DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 Single Rank 1.1V Registered DIMM 288-Pin Server RAM Memory M321R2GA3BB6-CQK
$699.00
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