General Hardware Questions Questions & Answers

If I want to replace the hard drive on the PS4, what type do I need to get? What is the hard drive type that the playstation 4 uses?

I have an original launch 40gb PS3 that plays PS2 discs. The HDD is too small to play some games so I want to be able to upgrade it to a larger disk. If I replace the hard drive on my PS3 will it erase the stuff that lets me play PS2 games?

I bought the new XL 3DS, but all of my game saves are on the old 3DS. Is there a way for me to get my old game saves from an original small 3ds onto a new XL 3ds?