Cheapo one from a place that has something in common with trees. TCSUNBOW it's made by, got good reviews and was/is cheap and no, i've never heard of them either. Took about 2 hours including watching the tutorial. Had no issues or errors. Dash is a bit snappier and games def load quicker, I'd probably even say a tad quicker than using external SSD which I was doing (a 120gb Samsung just for kicks see what Pubg was like). Updates fly when they're installing. Suppose it's down to personal choice.
Once the drive is all partitioned and the dash and what not is installed you end up with something like 730ish gb for game storage.