5400rpm if old.
How to replace HDD in PS4:
http://www.youtube.com/watch?v=u8_nt2Dwf78
Also, this PS4 also wobbles like GiantBomb's
How to replace HDD in PS4:
http://www.youtube.com/watch?v=u8_nt2Dwf78
Also, this PS4 also wobbles like GiantBomb's