5V to 9V Booster Module USB Step Up Cable Adjustable Voltage Transformer DC Power Cord with DC Barrel Jack Tip

This cable is kinda fascinating - it has an integrated boost converter, so you can plug it into any USB port (from a computer, battery pack, etc) and it will give you a higher DC voltage! It's a handy way to power 9V powered devices with a center-positive 2.1mm(we can make it 2.5mm also) DC barrel jack from a USB port. We also have a version that provides 12V.
Plug & Play: This 5V to 9V DC converter is really handy when travelling or outdoors, just power it with a 5V 2A power bank and you can start running your 9V devices.
Widely Usage: Super convenient for different kinds of devices such as Fan, Table Lamp, Bluetooth Audio, Wireless Router, Speakers that requires for 9V power.
USB Input: 5V A male; DC Output: 9.0V; Max current: 0.8A; PLEASE NOTE: The size of the DC Connector is OD: 5.5 mm and ID: 2.5 mm(2.1mm). Please check if it fits in the power jack on your devices.
Safe & Reliable: with built-in upgraded intelligent IC circuit, our voltage adapter provides your devices perfect protecetion from over-current, over voltage, overload or short circuit.
Longer Transfer Distance: 1M/3.28ft power cord and no loss current, makes long distance transfer free.