Only the PS3's released within the first 2 years have 4 USB ports and Memory Card / Stick slots (MGS4 bundle and earlier) most PS3 Phats have 2 USB ports and NO Mem Card / Stick slots and you can tell if a PS3 is backwards compatible from the amounts of USB ports it has, if the PS3 has 4 USB ports it IS backwards compatible. anyways PS3 is the way to go man