I just bought a Xiaomi air 13.3 (2018). It comes with 2 M2 SSD bays, one is occupied by the stock M2 NVMe (that I replaced with a Samsung 970) and the other one is open.

I tried to put the old SSD in the empty slot, but it doesn't fit. I looked into it and I found that the second slot isn't an NVMe slot, but a mSATA or SATA i think. (I couldn't find the specification while googling).

Since I still have an empty SSD slot, I am looking for a drive between 500GB and 1TB to put into the laptop. The cheaper the drive is the better.

  • How much storage are you looking for? How much are you willing to spend?
    – Cfinley
    Aug 23, 2018 at 20:02
  • I'm going for 500GB - 1TB, more storage is better. The less i spend is better.
    – Pown
    Aug 24, 2018 at 10:38

1 Answer 1


After looking deeper into this, the second free M2 slot is SATA. The best choice is SATA M2 with B&M key like the Crucial MX500

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