Do you have any devices with USB C connections that don’t seem to power or work when plugged into another USB C port? Chances are, the designers skimped a few pennies or just forgot to put inthe two 5.1K CC resistors required for C-to-C connectionsat 5V. It can drive you batty because some computers care and some don’t!

That’s why we designed theAdafruit USB Type C CC Resistor Fixer, a collab between oursunken USB socketandUSB Plug breakout. It’s the onlyproduct we hope we can discontinue one day, sooner rather than later!This small PCB assembly fits onto a cable or into the mis-designed port. It passes through the two data pins and the Vbus and Ground power lines, while adding the missing 5.1K resistors on the port side and a power good LED.

Note that the USB plug pinout doesn’t carry the sideband wires or the high-speed pins, so this is good for USB charge/sync but not for high speed or speciality protocols. If you’re not sure, then it’s very unlikely you need them: those products aren’t going to mess up the CC resistors.

Snap-on enclosure now available!

Specifications

• Product Dimensions: 24.8mm x 14.0mm x 3.4mm
• Product Weight: 1.3g

Resources

• EagleCAD files are available here

Package Contents

• 1x Adafruit USB Type C CC Resistor Fixer