CP2104-MINIEK USB-to-UART Mini Evaluation Kit Silicon Labs CP2104-MINIEK USB-to-UART Mini Evaluation Kit is designed for the evaluation of CP2104 single-chip USB-to-UART bridge. This mini evaluation kit from Silicon Labs consists of the CP2104 mini evaluation board, mini USB extension cable, and CP2104 mini quick start card. The quick start card contains the information on each header and test point connected to the CP2104 mini evaluation board.