USB 5V to 9V/12V Step-Up Converter – Portable UPS for Routers, IP Cameras, and DIY Projects
Power cut? Router down. IP camera offline. Alarm system unresponsive. If you have a power bank connected to this USB 5V to 9V/12V step-up module, you can forget about these interruptions. Keep your devices powered continuously—no downtime, no manual reconfigurations.
Note: Maximum power output depends on your USB source. We recommend a USB port with at least 2A output for stable operation at 12V/0.8A.
Why choose this model? (Key Advantages):
- Physical 9V / 12V Switch — Toggle your output voltage in seconds. No apps, no complex software, and no computer required.
- Real-Time LED Display — Instantly monitor your active output voltage at a glance, eliminating the need for a multimeter.
- Native UPS Functionality — When connected between a pass-through power bank and your router or IP camera, it automatically takes over the power supply during a blackout.
- 5.5×2.5 mm DC Connector + 3.5×1.35 mm Adapter Included — Compatible with the vast majority of routers, IP cameras, and universal power supplies right out of the box.
- Lightweight and Compact — Weighing only 35g with a 0.8m cable, it fits discreetly on your desk, in your car, or in the field without adding clutter.
- Universal Compatibility — Works with any 5V/2A USB source, including wall chargers, car USB ports, or standard power banks.
Performance and Technical Details
This module utilizes an efficient boost (step-up) circuit to convert 5V USB input into 9V @ 1A or 12V @ 0.8A, easily selectable via the physical switch. The conversion is highly energy-efficient, featuring minimal power loss and integrated overload protection.
The LED display provides constant confirmation of the active voltage, ensuring there is never any ambiguity about your power output. You can switch voltage modes without needing to disconnect from the USB source.
In a portable UPS configuration, the module sits between a pass-through power bank and your device. If the mains power fails, the power bank instantly takes over the load, keeping your router or IP camera online without a flicker. This same principle applies to automotive installations, Arduino or Raspberry Pi projects, and any embedded application requiring 9V or 12V from a standard USB port.
| Parameter | Value / Detail |
|---|---|
| Input Voltage | 5V DC via USB connector |
| Max Input Current | 2A |
| Selectable Output Voltage | 9V or 12V (physical switch) |
| Output Current at 9V | max. 1A |
| Output Current at 12V | max. 0.8A |
| Display | LED voltage indicator |
| Main Output Connector | DC 5.5 × 2.5 mm |
| Included Adapter 1 | DC 3.5 × 1.35 mm (male) |
| Included Adapter 2 | DC 5.5 × 2.5 mm (female) |
| Cable Length | 0.8 metres |
| Weight | 35 g |
| Primary Applications | Router, IP camera, alarm, automotive, DIY, UPS power bank |
Usage Instructions
- Select your output voltage before connecting: Use the physical switch on the module to choose between 9V and 12V. Confirm the desired voltage on the LED display.
- Connect your target device to the DC output. Use the included 3.5×1.35 mm DC adapter if your device requires a smaller plug.
- Connect your 5V/2A USB source (charger, car port, or power bank) to the module’s USB input. The LED display will light up, confirming the active voltage.
- For UPS configuration: Connect the module between a pass-through power bank and your device. During a power cut, the power bank will automatically maintain the supply without interruption.
- Warning: Do not exceed the maximum recommended current (1A at 9V / 0.8A at 12V) to avoid overheating the module.
Package Contents
- 1× USB 5V → 9V/12V Step-up converter module with LED display
- 1× DC male adapter 3.5 × 1.35 mm
- 1× DC female adapter 5.5 × 2.5 mm
Frequently Asked Questions
Can I power a 12V/1A router with this module?
The module delivers a maximum of 0.8A at 12V. If your router requires a constant 1A, there is a risk of overload. For devices consuming up to 0.8A at 12V, operation will be stable. Please check your original adapter’s label before use.
Does it function as a real UPS when connected to a power bank?
Yes, provided your power bank supports pass-through charging—meaning it can charge and supply power simultaneously. In this setup, if the mains power fails, the power bank takes over the load instantly, and the module continues to deliver 9V or 12V without any visible interruption.
Is it compatible with car USB ports?
Yes. Standard car USB ports typically deliver 5V/1A or 5V/2A, which is sufficient to power 9V/1A or 12V/0.8A equipment via this module. Ensure your car port provides at least 2A for optimal performance at 12V.
Can I change the output voltage while the module is connected?
Technically yes, the switch allows for changes during operation. However, if your connected device is sensitive to voltage fluctuations, we recommend disconnecting it first, changing the voltage, verifying it on the LED display, and then reconnecting.
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