Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I just picked up a T620 from Ebay and it doesn't have any HDD. I don't believe this version has the MSATA slot, does that mean the default HDD would be an M.2 drive?
Could be model dependant but according to HP it's mSata https://support.hp.com/gb-en/document/c04017240