Auxiliary and Utility Boards
Here I am showing different types of boards I use for various auxiliary purposes. That could be some communication protocol converters, handy breakout boards, small units for specific task, adapters etc.
SPI-USB Adapter - This is an SPI-USB adapter board based on the FTDI chip. It has SPI header which I use for most of my boards and USB male plug. It can do up to 30 Mbps SPI communication speed.