The PL2303 USB UART Board (type A) with Communication Modules RoHS manufactured by Waveshare is a USB to UART adapter that allows a user to convert USB data into UART serial data. The board is designed with communication modules that are RoHS compliant, and it is capable of providing users with up to 140 MHz of data transmission. It has a wide operating temperature range from -40°C to 85°C, and can be used in various embedded systems such as industrial automation, modems, test and measurement equipment, GPS navigation systems, notebook/PC communications, barcode scanners, and more. The board is easy to use and supports transmission of signals up to 1 Mbps. Additionally, it also features 6 pins for GPIO programmable power outputs and 6 pins for UART interface power inputs.