Adafruit
USB Type C 3.1 PD to 5.5mm Barrel Jack Cable - 9V 5A Output
A USB Type-C Power Delivery (PD) cable that converts any PD-capable USB-C power adapter into a 9V DC barrel jack output at up to 5A. The built-in PD sink neg...
A USB Type-C Power Delivery (PD) cable that converts any PD-capable USB-C power adapter into a 9V DC barrel jack output at up to 5A. The built-in PD sink negotiation chip communicates with your adapter to request 9V output, while an EMARK chip enables full 5A high-current delivery as required by the USB-C specification.
The cable terminates in a 5.5mm outer / 2.5mm inner diameter barrel jack that also fits 2.1mm jacks thanks to a springy tip design. At 1.2 metres long with an included Velcro cable tie, it's a convenient replacement for multiple wall adapters.
Key Features
- PD Sink Negotiation – Built-in chip requests 9V from any USB-C PD source
- Up to 5A Output – EMARK chip enables high-current power delivery
- 5.5 × 2.5mm Barrel Jack – Also compatible with 2.1mm barrel jacks
- 1.2m Cable Length – Practical length for most setups
- Velcro Tie Included – Keeps the cable tidy when stored
Specifications
- Input: USB Type-C (PD source required)
- Output Voltage: 9V DC (via PD negotiation)
- Max Current: 5A
- Barrel Jack: 5.5mm OD × 2.5mm ID (fits 2.1mm)
- Cable Length: 1.2 metres
Ideal For
- Replacing multiple 9V wall adapters with a single USB-C PD charger
- Powering routers, single-board computers, and 9V devices
- Portable setups using USB-C PD power banks
Jargon buster
Plain-language definitions for the technical terms used above.
- DC barrel jack
- A round power connector commonly used for low-voltage DC power supplies, often described by its outer and inner diameters such as 5.5 x 2.1 mm. Matching the barrel size and polarity is important so the plug physically fits and powers the device correctly.
- USB Type-C
- A reversible USB connector used for power and data on many modern devices. On this kit it indicates an alternate 5V power input, which may be useful for setup or charging without the solar panel.
- USB-C
- A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.
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