I have the original PS4 with only 500GB of storage space. The PS4 Pro (and the newer PS4 regular) comes with 1TB. I was constantly running out of space on my console, unable to install new games, download updates, etc. and I was hesitant to upgrade to a $400 Pro just for more storage space. I also did not want to risk installing a new HD on my own. With the new PS4 update, it allows you to use an external hard drive as additional storage space. (Note that you do not need the My Passport that specifically says it's for "PS4" in the title. The standard USB 3.0 Portable Hard Drive will do.) I plugged it in and followed the simple instructions for my PS4 to format it, and voila, 4TB of additional storage -- thank god! I immediately downloaded all the games that were sitting in the queue, and also transferred all of my existing games to the external drive. I went from barely a GB of free space on my PS4 to about 300 free GB, which I can now use to save gameplay footage, screenshots, etc. without getting an error that there's not enough space. Works like a charm and I've had zero issues with it.