On 1/13/04 3:47 PM, "Erik Ableson" <eableson at mac.com> typed the following: > Hmmm - I've actually used mine on my TiBook for a month while between > residences ( Cube in storage) with no ill effects. The TiBook USB > ports are powered ports - there's nothing special about the specs on > the Cube USB ports. > > Erik Yes there is, actually. "The Cube Speakers require "special" 10-watt USB ports to work at full volume. The Cube has these ports, as do all Apple ADC monitors. These special USB ports are sometimes called 20-watt ports by Apple, because the two ports share a single 20-watt supply of power, however, the Cube Speakers only use 10 watts per channel. Regular USB ports only supply 2.5 watts - so don't bother trying to run your original Cube speakers off your USB hubs or keyboards." Laurie -- Founder, Editor, FAQ-checker http://cubeowner.com Home of The Mac Cube FAQ! AOL IM/iChat: cubeownernyc