Load times will be slow. It uses a WD Red NAS HDD drive that spins at 5400 RPM. You'd be better off buying a cheap 500 GB SSD and putting it in a USB 3.0 or 3.1 enclosure (San Disk has a 500 GB SSD for $129 right now), unless you need the huge capacity of this drive.
If you need the huge 4TB capacity for all your games, then it will work.