The PlayStation 4 comes with a 500GB hard drive, and let's be real—that's not gonna be enough space for some of you. The good news is that you can upgrade it.
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Check out this video by gamespot, which walks you through what you need to do to swap in a new hard drive into your PS4. Thankfully, it's nothing too complicated. And assuming you're okay with the space the original hard drive affords you, installing a different hard drive might still be of interest: a SSD can allow you to load games a little faster. So, it's definitely worth considering.
If you're debating whether or not you should get a PS4 in the first place, make sure to read our review here.