Re: ASICMiner BE300S Samples Arrived, <0.2W/G Achieved at Board Level
USB 2.0 will deliver 0.5A on 5V = 2.5 W
USB 3.0 will deliver 0.9-1A on 5V = 4.5-5.0 W (especially in PC, not all notebook/laptop USB 3.0 will deliver 1A)
As a complete and utter aside - note that these specifications are usually per port. Old portable 2.5" HDDs and optical drives would often include a split cable with one end of the Y-split being power+data, and the other just power, allowing a second USB port to deliver the extra oomph needed for the optical drive / HDD spin-up.USB 3.0 will deliver 0.9-1A on 5V = 4.5-5.0 W (especially in PC, not all notebook/laptop USB 3.0 will deliver 1A)
( Looks like most current external HDDs no longer use extra power, and some optical drives seem to come with a USB-USB cable and a USB-barrel cable )
I'd certainly view a USB miner that used shenanigans like that as still being a USB miner. Might have to draw the line at utilizing 4 ports, though
