Power Sockets in PE

Hey,
I have tried looking at this on the website and also searching the forums but remain confused! I'm travelling in PE next week to JFK and back a week later. Will my seat have a power socket and if so, will I need one of the converters like the ones they have in UC? Am I right in thinking all the PE seats have a USB port now?
I'm going out on VS3 - A333 and back on VS46 - B744.
Thanks in advance.
I have tried looking at this on the website and also searching the forums but remain confused! I'm travelling in PE next week to JFK and back a week later. Will my seat have a power socket and if so, will I need one of the converters like the ones they have in UC? Am I right in thinking all the PE seats have a USB port now?
I'm going out on VS3 - A333 and back on VS46 - B744.
Thanks in advance.
