One of the joys of the PS3 was its easily upgradeable hard drive -- and the PS4 is no different. By sliding off the PS4's case and removing a single screw, you can easily slot in a replacement hard drive or SSD. The ability to upgrade to a larger hard drive in your PS4 will be very useful if you buy a lot of games, or if you opt to fully install games to reduce load times. If money's no object, and you want your games to load really quickly, you can also replace your PS4's standard hard drive with an SSD. To find out how, read on for our guide on replacing the PS4's hard drive.