Knowledge Center / Memory part-number decoder

Memory part-number decoder

Every module's label tells you exactly what it is — once you know the pattern. Type a part number below to filter the tables.

Knowledge pages are educational references, independent of sales inventory. Items without confirmed sourcing are reference-spec — quoted on demand.

BrandPart numberCapacitySpeedRankHow to read it
SamsungM393A4K40CB2-CTD32GBDDR4-2666V2Rx4M393 = DDR4 RDIMM family · suffix -CTD = 2666
SamsungM393A4K40CB2-CVF32GBDDR4-2933Y2Rx4suffix -CVF = 2933
SamsungM393A4K40DB3-CWE32GBDDR4-3200AA2Rx4suffix -CWE = 3200
SK hynixHMA84GR7CJR4N-VK32GBDDR4-2666V2Rx4HMA = DDR4 · 84G = density code 32GB · R = RDIMM · -VK = 2666
SK hynixHMA84GR7CJR4N-WM32GBDDR4-2933Y2Rx4-WM = 2933
SK hynixHMA84GR7DJR4N-XN32GBDDR4-3200AA2Rx4-XN = 3200
MicronMTA36ASF4G72PZ-2G632GBDDR4-2666V2Rx4MTA36 = 36-chip ECC · 4G72 = 4G×72 org · -2G6 = 2666
MicronMTA36ASF4G72PZ-2G932GBDDR4-2933Y2Rx4-2G9 = 2933
MicronMTA36ASF4G72PZ-3G232GBDDR4-3200AA2Rx4-3G2 = 3200

Reading ranks: 2Rx4 = two ranks of ×4-width chips (the data-center standard for 32GB DDR4); 1Rx4 and 2Rx8 appear on 16GB modules. Rank affects channel population rules more than raw speed.

All nine part numbers above are our core quoted line — availability confirmed at quotation; see Memory availability.

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