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Samsung

Samsung DDR5-6400 ECC RDIMM Spec and Price in Canada

DDR51x64GBRDIMM16.25 ns true latency

Samsung's M321R8GA0EB2 is the 64GB DDR5-6400 registered module, running 2Rx4 ranks at CL52 and 1.1V per the listings that carry the part number. It is the same M321 family and single-module shape as the 5600 line, one speed grade higher for servers whose memory controllers support 6400 MT/s — the class the newest EPYC and Xeon platforms boot — and it doubles as the compatibility target aftermarket RDIMMs are built to mimic.

Tied 1st of 18 models in the Server RAM catalog on Speed — 3 models share this figure.

Current best price
$4,429.49Price too old to confirm

Prices exclude GST/HST.

The last tracked price for Samsung DDR5-6400 ECC RDIMM in Canada was $4,429.49 at Amazon.ca, captured 2026-09-30. Across one tracked merchant and 54 days of recorded prices, the 90-day median for Samsung DDR5-6400 ECC RDIMM is $4,111.34 and the lowest recorded price is $525.75. This site began capturing prices on July 30, 2026; for Amazon listings, prices dated earlier come from Keepa's price history.

Captured periodically and may have changed.

Price history

30D90D180DAll
  • 1x64GB
July 29, 202635 data pointstoday · $4,429.49

Each point is one day's recorded price, not a list price. Points dated before July 30, 2026, when this site began capturing prices, come from Keepa's Amazon price history. How we track prices

Specifications

Capacity
1x64GB
Memory type
DDR5
Speed
6400 MT/s
CAS latency
Form factor
RDIMM
Voltage
1.1 V
Modules
1
RGB
No
ECC support
Yes

Capacities

ConfigurationPart numberCurrent best price
1x64GBM321R8GA0EB2

$4,429.49

Price too old to confirm

Guides for this category

How much RAM you actually needHow to size memory from the pressure your machine is under now, why running short quietly costs speed, and when a matched pair beats one stick.RAM speed and latency, and when they matterWhat a kit's MT/s and CAS latency each measure, why true latency is the two together, and the machines where the numbers actually change anything.SO-DIMM vs DIMM: the memory a laptop takesWhy laptop memory is a different module from desktop memory, how DDR4 and DDR5 are keyed apart, and why some machines take no module at all.What is ECC memory, and when you need itWhat error-correcting memory actually catches, how registered and load-reduced modules differ from unbuffered ones, and why the platform decides.

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.