Can I safely take power from one USB socket and data from another?
50787
Splice high current charge source into USB cable?
24801
How can I duplicate Apple's tiny USB power adapter?
36841
Generating high voltage (100V+) from 5V USB supply
135049
Is it safe, or even possible, to draw more power from a USB port than it was designed to provide
84467
How can I rewire half switched receptacles?
119036
What are the consequences of using a low-wattage USB-C power supply with a MacBook Pro?
104461
Will unplugging a USB key without safely removing it cause problems?
146736
Can I charge my laptop through USB
83091
Draw power from a portable mobile charger to power circuits
139633
If I leave my chargers plugged into the wall socket at all times, do they consume energy or present a safety risk?
14714
How do I protect my laptop from power surges?
27618
How can I build a micro USB hub?
116095
Is there some way to connect two computers using USB?
157849
Can I control voltage of USB data pins?
3738
How to share a printer (or any usb devices) to two or more computers?
56268
External power to STM32F4 Discovery board
153381
How do I design a 2A or more power supply for my consumer USB devices?