[sbierwagen]

>a M.2 to 4x SATA

Is that a thing which exists?

[PragmaticPulp]

M.2 is a port which can carry different interfaces.

In this case, this M.2 slot carries PCIe, so you can add a PCIe SATA controller. Confirm driver support first, of course.

[dshep]

https://www.amazon.com/Internal-Non-Raid-Adapter-Desktop-Sup...

Haven't tried it personally, but maybe it works? :)

[geerlingguy]

I have one of these and have tested it on the Raspberry Pi [1]. It indeed works fine (and IME if it works on the Pi, it works on anything with PCIe).

[1] https://pipci.jeffgeerling.com/cards_storage/iocrest-jmb585-...

[nuker]

It works, but custom made heatsink is needed, I got IO errors without it.

[ashkankiani]

I use 2 of them in my computer I'm writing this from for my RAID array.