IMac 24 & firewire ?

One thing i noticed on the iMac spec page was the power to the fw bus on the 24". Was wondering what the implication might be ... anyone smart enough to clue me in ?
http://www.apple.com/imac/specs.html
"Peripheral connections
17-inch and 20-inch models
Two FireWire 400 ports; 8 watts shared
24-inch model
One FireWire 400 and one FireWire 800 port; 15 watts shared"
I've never seen Apple make that distinction before - aleays been just the types of ports and # of them. Never the power before.

Nothing implied. Apple has provided that information on most recent models, although it may have only been in the Tech Specs.
The bus power has been the same ever since FW was included on Macs. Each port can provide 7.5 watts or one port 15 watts if nothing is connected to the other port. There are similar limitations on the USB ports.

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