DFRobot - USB Step-up Boost Converter (5V to 9V/12V, LED Display)

5V to 9V/12V USB Boost Converter provides a simple power solution for devices requiring higher DC voltage than standard USB sources supply. This compact voltage step‑up cable converts a 5V USB input into selectable 9V or 12V output, enabling portable power delivery from USB chargers, power banks, or computer ports. A built‑in switch allows quick voltage selection, while an integrated digital LED display shows real‑time output voltage for convenient monitoring. The compact boost conversion accessory eliminates the need for bulky adapters and enables reliable operation of routers, network equipment, and industrial electronics using widely available USB power sources.

Figure: USB boost converter cable with LED voltage display

Selectable 9V or 12V Output with LED Voltage Display

This USB step‑up power converter integrates a voltage selection switch that enables fast switching between 9V and 12V output modes. A digital LED display continuously indicates the output voltage level, allowing quick verification during operation and simplifying troubleshooting when powering sensitive electronics. This voltage‑boosting cable design provides clear visibility of the power status while maintaining a compact inline structure suitable for portable or bench setups.

Convenient USB‑Powered Operation

The DC boost cable accepts standard 5V USB input from mobile power banks, wall adapters, laptop ports, or USB hubs. This flexible power input design eliminates dependence on dedicated adapters and allows portable deployment in field equipment, networking setups, and temporary installations. Compatibility with widely available USB power sources greatly improves usability for technicians and makers working with low‑power DC devices.

Practical Power Solution for Networking and Industrial Electronics

This compact voltage‑boosting accessory is well suited for powering small networking hardware and electronic modules requiring stable 9V or 12V DC input. The inline conversion design simplifies power wiring for routers, optical network terminals, and industrial sensing equipment. Reliable voltage step‑up performance combined with a lightweight cable form factor makes the module useful for maintenance tasks, portable electronics setups, and temporary system deployments.

Figure: USB to DC boost converter connection example

Typical use cases include powering routers, optical modems, and industrial sensors using portable USB power supplies. This USB voltage step‑up cable also serves as a practical troubleshooting tool for technicians needing temporary 9V or 12V DC power from a standard USB source.

• USB 5V input stepped up to selectable 9V or 12V DC output
• Built‑in switch for quick voltage selection
• Digital LED display shows real‑time output voltage
• Compatible with USB chargers and mobile power banks
• Compact inline cable design for convenient deployment

• Industrial sensors
• Routers
• Optical modems

• Interface: USB to DC round head
• Voltage Input: 5V
• Voltage Output: 9V/12V
• Maximum Output Current: 9V/1A, 12V/0.8A
• Cable Length: 0.8m/31.5 inch

• 5V To 9V 12V Boost Converter ×1
• 3.3*1.35 Adapter ×1