If you want to Transfer your saved game data to another PlayStation Device from your PS4, first you have to copy the game data to a USB flash drive/Hard Drive (1:56) and then share the game backup from the USB Drive to your PS4 System Storage (3:07).

We will also show you how to move your Saved Game Data to extended storage to free up storage on the PlayStation 4.

Add an external hard Drive on PS4:    • How to Set Up Your PS4 External Hard ...  

0:00 Transfer Game File to External Drive
0:38 Move Game Data to Extended Drive from System Storage.
1:56 Step 1: Copy Game data to a USB Flash Drive
3:07 Step 2: Transfer Game backup from USB drive to PS4