USB Type-C Make your keyboard future-proof and reversible Type-C USB Slightly wider than MicroUSB connectors. Keep in mind when designing PCBs to fit standard cases. Soldering is much more difficult. Mini/Micro-USB has 5 pins. Type-C has 24. Completely surface mount Type-C connectors are  impossible to solder by iron. Type-C connectors have two rows of pins, one of which exit from below the connector. If hand-soldering via iron, choose a hybrid connector with through-hole pins for the under-connector row. Type-C connectors often do not extend as far as old Mini-USB connectors do from the edge of a PCB. Often, the legs of a Type-C through-hole connector are extremely short (<1mm). Thick PCBs may be difficult to assemble. Design Considerations Type-C is physically larger. Type-C requires its own components to function. Some Type-C connectors have legs too short for 1.6mm PCBs. Assembly costs may increase. Implementation CC pins must be connected to 5.1k pull-down resistors Diagram by  Scorpia.co.uk https://www.scorpia.co.uk/2016/03/17/using-usb-type-c-on-hobyist-projects/ This diagram breakouts to a header. Keyboard use Pull-down the CC lines Use the DP/D+ and DM/D- lines just like any other USB connector Connect VBUS and GND like any other USB connector It is inferred that the pull-downed CC lines don’t have to be connected to anything else in particular. Type C High-Current Legacy Devices From ST’s PDF, it appears possible to draw more current through Type-C: Sources https://www.scorpia.co.uk/2016/03/17/using-usb-type-c-on-hobyist-projects/ https://www.mpe-connector.de/index.php?lang=en&menu=16&product_group[]=9&action=Search&id_product=7192 http://www.st.com/content/ccc/resource/technical/document/application_note/group0/a6/91/45/9e/12/a0/4d/42/DM00235987/files/DM00235987.pdf/jcr:content/translations/en.DM00235987.pdf