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Why external instead of internal? With the PS4 it takes less than 10 minutes to change the hard drive.
I have a 4TB SSD from Samsung in my PS4 Pro.
Can be used. But I think 500GB is not enough, 1TB should be.
In addition, the 1TB version was only available yesterday on Prime Day for 116 euro (I hit it myself).
For most, it is not a practical solution to spend almost 4x as much on a mass storage device as on the PS4 itself.
Well not now that the PS4 will be released soon.
I don't have a normal PS4 Pro either, but the Limited Edition Good of War Edition.
If you don't know what else to do with the money, you can do it.
Well I did it because the original HDD was defective…