How do I play games/apps from of my PlayStation 3/4 external hard drive?

The Sony PlayStation 3 and PlayStation 4 do not support the ability to play games or apps from an external hard drives. The external hard drives are only used for backup or media storage purposes.

We do offer a 1TB upgrade kit for the PlayStation 4's internal storage:

http://oyendigital.com/hard-drives/store/PS4-1000-HDD-BK.html

UPDATE (3/9/2017): The release of system software 4.50 allows the PlayStation 4 to play games from an external hard drive.