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  1. Corsair
  2. PC Components
  3. Memory

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How to: Read the CORSAIR memory part number

CORSAIR memory part numbers are meant to be understood at a glance. Use this article to see what the information in the part number means.

For this article, we will use the following part number as an example: CMK32GX4M2Z3200C16W. We will break down what each part of the number means below:

 

  • CM: Corsair Memory.
  • K: The memory kit line; in this case, it is part of the LPX line.
    • To see what lines use which letters, see the SKU columns in our DDR3 memory module dimensions, DDR4 memory module dimensions, and DDR5 memory module dimensions articles.
  • 32G: The total capacity of the memory kit and the sum of all modules' capacities; in this case, the total capacity of all memory modules added together is 32GB.
  • X4: The DDR generation of the memory kit; in this case, it is DDR4.
  • M2: The number of modules in the kit; in this case, combined with the "32G" part of the number, there are 2 memory modules, with each module having a capacity of 16GB.
  • Z: The model version, which denotes platform compatibility; for DDR5, the model refers to the PMIC range of the kit.
  • 3200: The number of megatransfers per second(MT/s) when the overclock profile is enabled.
    • Please note that default operating frequency and timing will vary by kit, so consult the technical specs on the product page of your memory kit for more information.
  • C16: The CAS latency; in this example, the CAS latency is 16.
  • W: The color of the heatsink; if no letter is present at the end of the part number, then the heatsink will be black.
  • If a DDR5 kit has a K at the end, this means it was part of our iCUE recognition recall

Please note that DDR5 Part Numbers can be easily distinguished between AMD EXPO and Intel XMP.

Intel XMP kits will be denoted with C__, AMD EXPO will be Z__.

Example:

CMP32GX5M2X7200C34 = Intel XMP

CMP32GX5M2B6000Z30 = AMD EXPO

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Related articles

  • Find a Serial Number or Lot Code
  • What does the model version for DDR5 memory mean?
  • DDR4 memory module dimensions
  • What integrated circuits (ICs) are used on my CORSAIR memory?
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