The new USB 3.0 power delivery spec supports 3A at 20V over micro-USB for potentially 60 Watts delivered via micro-USB and 100W over USB. The idea is to get rid

The new USB 3.0 power delivery spec supports 3A at 20V over micro-USB for potentially 60 Watts delivered via micro-USB and 100W over USB. The idea is to get rid of laptop charger plugs entirely and replace them with USB. A bunch of companies are on this standard, including Dell, Foxconn, HP, Intel, Microsoft, and Nokia. Apple is absent for some reason. This standard will also allow external hard drives, printers, etc to be powered over USB without a separate power plug. This will be an interesting change if the standard catches on. I wonder about the failure mode of 60 watts through micro-USB though - I expect dramatic smoke and flame :-) http://www.usb.org/press/USB_Power_Delivery_Spec_Completion_FINAL.pdf http://www.usb.org/press/USB_Power_Delivery_Spec_Completion_...