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New Product – Reprogram USB Type-C PD to 2.1 / 5.5mm Barrel Jack Cable « Adafruit Industries – Makers, Hackers, Artists, Designers and Engineers!

new product – Programmable USB Type-C PD Cable to 2.1/5.5mm Barrel Jack Cable


This unusual cable is kind of the ‘final’ in USB Type C Power Delivery (PD) hacking: good for experienced hardware hackers who feel comfortable with a cable that can go from one setup to the next. Rather than having to juggle multiple wall warts with different power and current capabilities, this cable will convert any USB Type C power adapter with Power Delivery (PD) support into formal 5V, 7V, 9V, 10V, 12V, 15V or 20V DC power outlet, with an output of up to 2A.

Inside the cable is a programmable PD sink negotiation chip. When connected to a suitable PD Type C adapter that can supply 5/7/9/10/12/15/20V, it will talk to the PD source chip in the power supply and tell it “Hello, please change the output to, say, 9V Thanks a lot! And ta-da, you get 9V on a DC barrel jack. Check the side of the adapter you are connecting to make sure it is a PD source – The voltage and current capacities will be listed on the transformer.

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Note that Not boost or buck converter – if your power supply can only do 5v or 20v it won’t magically convert it to 12v – We have reinforced USB cables if that’s what you want. So If you program the cable to a 10V DC cable but the power adapter can’t give you 10V, you will probably get the default 5V (or no voltage!), depending on what the power supply does when the required power is not supported.

The output voltage is often 0.25V to 0.5V higher than the rated voltage so that the voltage drop across the cable remains when high current is drawn while maintaining the desired voltage at the terminal.

The programming software is available in the Technical Specifications section below, and it’s Windows only – we ran it on Windows 10 successfully. It takes a few tries to get the hang of it, but it works! There are many setup files, load the file and program it into the cable while it is connected to the programmer dongle.

This cable is 1 meter long, so you get the right length for your project. It also comes with a Velcro tie to keep it wrapped and neat. The outer tip is 5.5mm in diameter, and the inner diameter is 2.5mm, but it’s springy, so it works well with 2.1mm as well.

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In stock and shipping now!

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