Boost any 5V USB power supply to 9 Volts for electronics that charge at a higher voltage. Great for radios, GPS modules, portable printers, and other 9V devices. 9V cable has a 5.5mm x 2.1mm tip. Confirm this will fit your electronic device or browse our adapter list for the correct size. Cable includes on/off switch.
Note: Regulator works best with 2A power supply, such as our V44 or V72 solar batteries.