All 3.5" external hard drives have to have a secondary power source. Some 2.5" external hard drives must have one as well, only the slower spinning drives, 4500rpm or less, can be powered solely from the USB port. Rich Allen daniel turner wrote:
Utahgraphers:
Is anyone using an external hard drive to backup their photo collection?
I'm looking for recommendations in the 100 Gig range that runs from the USB port. It doesn't have to be super fast because I process on my main drive and just need a place for backup copies of things I want to keep.
I'd like to just drag and drop files and or folders between two sessions of windows explorer and then go make a snack while it does it's thing.
I'm wondering if they draw too much current to be really powered through the USB port as some advertise and is an external power source model a better idea.
Also nice to have would be either hot swapable where you just plug it in when you use it but don't have to reboot to do so. That or a leave-it-hooked-up-unit that was smart enough to power itself down when not in use or when the computer is turned off.
It's for a desk top machine so it doesn't need to be ultra portable.
DT
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