“What "key" is this? I think its M, but I can't be sure as I don't know which side is up. I am looking for a B keyed SSD. (Or B + M).”

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• Yes this is keyed in M as it’s an NVMe what you are looking for is a SATA which is keyed in B+M.

  Answered by Commo 4 years ago

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• This SSD is an M Key.

  Answered by Nick 3 years ago

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• There is some carelessness about answering this question. Assuming it is advertised correctly, this is a PCIe drive, NOT, as Best Buy replies, a SATA drive. The terms are not interchangeable (neither is "SSD," although the term is often used loosely). Assuming Best Buy replies correctly that it is M-Keyed, you have to determine whether you need a SATA drive or a PCIe drive. The two are not completely interchangeable: a SATA drive will USUALLY (but not always) work in a similarly keyed PCIe slot (at SATA speeds). A PCIe drive will RARELY work in a similarly keyed SATA slot (at SATA speeds). It all depends on the whether the BIOS/motherboard combination is compatible for the difference.

  Answered by luislast 4 years ago

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• This is am "M" key SSD. The "B" key is for older SATA SSDs, they typically have both "M" and "B" keys and are considerably slower.

  Answered by tcttcf 4 years ago

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