it will work. But since usually "cable" connections are crap, i doubt you will be able to play without lag.
By the way you need to update your ps3 before going online and it takes a while so don't get psyched as soon as you plug in the cable and create your account.
By the way you need to update your ps3 before going online and it takes a while so don't get psyched as soon as you plug in the cable and create your account.