SDWire is a PCB to switch a uSD card between a target device and a controlling USB host. It is especially useful for development and testing of embedded systems which rely on uSD cards to boot from.

SDWire 1.4 has a uSD card slot on one side and fits into a uSD slot itself. It has a micro USB port which allows to access the uSD card as mass storage device or mux(/switch) the uSD card so it is accessible from the uSD port plugged into the target device.

The board has been designed by the fine folks of the Samsung Open Source team. More information like Schematics, BOM and software can be found on the original SDWire wiki: https://wiki.tizen.org/SDWire

Note: The uSD card slot is not available on Digikey or Mouser.

Note: I also sell a matching Stencil