The statement about the elements 2.5 not having an SATA interface is false. I just bought one and tore it open because USB 2.0 is unacceptable. I now have a nive WD Caviar Green inside my PC!
I got the thing open using my fingernails and a nail clipper. It looks scary when you see the tear-down photos, but if you're gentle and take your time you can get it out without a scratch!