This USB(input) to DC(output) boost converter can step up 5V to 9V/12V with a switch for selecting voltage and a digital LED display for showing output voltage.
Usb Power Boost Line Dc 5v To Dc 9v / 12v Step Up Module Usb Converter Adapter Cable 2.1x5.5mm Plug - Integrated Circuits - AliExpress
DFRobot 1.5A Multi-Function Mini Boost Step Up Module (5PCS) - Robu.in, Indian Online Store, RC Hobby
DFRobot DC-DC Multi-Output Buck Converter (3.3V/5V/9V/12V) - RobotShop
DROK USB to 9v, 5v to 9v USB Boost Converter, USB Cable DC 5v Step Up to 9v, 1.5A Power Regulator Line with 5.5mm Port 1.2 Meter Length : Electronics
100% brand new and high quality. This is a DC-DC boost converter module with working frequency of 1.0 MHz. The module has high efficiency, usually can
DC-DC Boost Converter 7W USB DC 5V to 6V 9V 12V 15V Adjustable Output Voltage Step-up Regulator Board,Module
This DC-to-DC adaptor is widely used. The suitable power is about 10 W. It is USB step-up boost converter cable with digital display.
2.5 ft. DC 5-Volt USB to 9-Volt and 12-Volt Step-Up Converter 25-2 with Digital Display Extension Cord (4-Pack)
HiLetgo USB Boost Converter Cable DC 5V to 9V 12V USB Step-up Cable USB to DC 5.5x2.1mm 3.5x1.35mm USB Power Supply Adapter UBS Power Voltage Boost Converter : Electronics
DC-DC Boost Module (0.9-5V) - DFRobot
USB Step-up Boost Converter (5V to 9V/12V)
XY-016 2A DC-DC Step Up 5V/9V/12V/28V Power Module with Micro USB - Robotools
Buy Mini PFM 09V 5V to 5V Converter USB Step Up Power Boost Module Online in India