Hi, I can't find any information on this hard drive's speed. To me this looks like the NAS I am looking for. At home it'll be accessible through my home network and on the go I'll just take all my files with me. Much better than the usual NAS or external hard drive - for me at least. So does anyone know the file copy speed when it is connected through gigabit ethernet? I'll reformat it to Apple's HFS+. When used as an external USB drive, is it powered through USB or do I need a power brick in that use case also? Any information will be greatly appreciated since this is the kind of device I've been looking for quite some time now. I also know of the Corsair Voyager Air. But this is a bit pricey for my liking. Also I don't need the built in battery.