# USB step-up module, 5V to 9V and 12V, 5.5x2.1mm and 3.5x1.35mm

> USB step-up module that converts a 5V input into a selectable 9V or 12V output via a switch. LED display shows the output voltage. Maximum output current 1A, maximum output power 10W. Includes a 0.8m cable with a 5.5x2.1mm connector and a 3.5x1.35mm adapter. Transparent plastic housing, USB 2.0 connection.

- Page: https://sigmanortec.ro/en/usb-step-up-module-5v-to-9v-and-12v-55x21mm-and-35x135mm
- Price: 22.66 RON
- Availability: In stock; 1-2 zile
- Reference: 9753 · EAN: 5942852116766
- Category: Electronic components > Step Up Modules
- Specifications: tension: AD; Supply Voltage: 5; Maximum Input Voltage: 5; Minimum Output Voltage: 9; Maximum Output Voltage: 12; Source Type: high; Current Adjustment: Not; Voltage Adjustment: Yes; Adjustment Type: Fixed; Maximum Output Current: 1
- Package (shipping data): 0.039 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:33 (Europe/Bucharest)

## Description

USB step-up converter that raises 5V to 9V or 12V, ideal for quickly powering routers, lamps or other DC devices from a power bank or USB port. Includes 9V 12V selection switch, LED display for output voltage, 0.8 m cable with 5.5x2.1mm plug and 3.5x1.35mm adapter for extended compatibility.
Step-up USB converter that converts the input voltage of 5V into a selectable output voltage of 9V or 12V, offering a convenient and portable solution for powering devices that require higher voltages.
It is equipped with a switch for selecting the output voltage and an LED display that indicates the value of the output voltage, being ideal for a variety of applications, such as powering routers from an external battery in case of power failure, powering small fans , desk lamps, solar panels or any application that requires a 9V or 12VDC power supply.
The riser is integrated in a transparent plastic case that offers the USB 2.0 connection on one side and a cable with a 5.5x2.1mm round plug on the opposite side. The package also includes an adapter from 5.5x2.1mm to 3.5x1.35mm plug.
Check the polarity of the plug before connecting equipment to this power source!!! The outside of the plug is Ground (GND, 0V), the inside is the plus. If the polarity is reversed, open the module (it is not glued, it is held with tabs) by applying pressure on the edges with tabs and opening the cover. Then reverse the output wires of the plug. Cases have been reported in which the plug arrived with reversed polarity, there being no other functional problems.
Specifications:
Supply Voltage: 5VDC
Power supply: USB 2.0, 5V
Output Voltage: 9V / 12V (adjustable via slider)
Maximum Output Power: 10W
Interface properties: Connection from USB to round DC plug
Cable length: 0.8m
Standard connector: 5.5x2.1mm
Extra Connector Included: 3.5x1.35mm
Use:
Plug the USB end of the converter into a USB power source (such as an external battery, a USB wall adapter, or a computer USB port).
Use the included switch to select the desired output voltage (9V or 12V). Check the output voltage on the LED display.
Connect the device that requires power to the DC connector. Make sure the device supports the selected voltage.
After making the correct connections, your device should start getting power from the converter.