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Question:
An M.2 is a solid-state drive (SSD) used for storage. It is definitely not memory. Although it may resemble a DIMM, it is smaller, and the connectors are located on the short end rather than the long edge. Error correction code (ECC) is a feature of some RAM modules that will detect and make an effort to fix errors made when storing or retrieving data. ECC is more expensive and typically found in servers rather than desktop computers. Like regular DIMMs, which are used in desktop computers, small outline DIMMs (SODIMMs), the memory used in laptops, feature a notch and connectors on the long side. DIMMs are larger than SODIMMs.