USB power from last 12" Powerbook model - is it enough to power a hard drive
I've got the last 12" Powerbook model before it was discontinued. I'd like to know if the USB delivers enough power for a portable harddrive that doesn't require a separate power source, such as the Western Digital Passport hard drives.
Comments
The Macbook, MBP and all the new desktops run it with just one port.
When looking for a drive, check the power consumption. Mine is 650mA. Aim for under 500mA.
You can also check out the Lacie firewire powered drives. Firewire supplies more power over a port and so you should easily get away with one cable there and it keeps your USB ports free for external mice:
http://www.lacie.com/products/product.htm?pid=10724