With a PS5 external SSD, you have extra space for storing your games. An SSD is faster than an external HDD for PS5, so you can transfer your games in a few minutes. This way, you combine a large storage capacity with fast loading times and you can easily take your PS4 and PS5 games with you to your friends or a tournament. Keep in mind that you can only play PlayStation 5 games on the system itself. You can play PlayStation 4 games without problems from the SSD.