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.
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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.
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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 a revised kit
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