Yup, yup, and a USB-C.
I grabbed one of these for the Steam Deck:
Comment on Steam machine prices are live
SkaveRat@discuss.tchncs.de 15 hours agothere’s also a micro sd card slot, for less demanding storage needs
jordanlund@lemmy.world 15 hours ago
smeg@feddit.uk 1 hour ago
Could always just plug in an external drive via USB too, though I have no idea how slow that would be nowadays