What is this slot? msata, m.2 ssd? toughbook CF-31W


Limp Gawd
Jun 16, 2017
I bought a cf-31 on an auction online, and i was looking around inside of it and i found a port which seems to look like either a wireless card or for a half size msata


it already has a wifi card, so i dont see why it would have 2 slots for wireless card

but i tried a big msata from my other computer even though it is too big, i held it in place while i turned it on, but it did not detect it

If you look closely there is a plastic area for a screw,

would a half size work? The big msata didn't work, so im guessing half size won't work?

half size.jpeg

What is that slot?


Supreme [H]ardness
Jun 7, 2007
Looks like msata. If the card isn't laying flat, the pins might not be making good contact inside the connector.

If you can find a manual for that computer, it might say what you need afa screws or other configuration.

Edit: also, check the bios, might need to enable it, and it may be an either/or between that and the 2.5" drive.