Catalog > Internet of Things (IOT) Related Products > More Platforms USB RS232 Serial Converter Board USB to RS232 Serial Converter Module GTC USB RS232 SERIAL CONV BOARD RS232 SERIAL CONVERSION BOARD WITH USB. MAX3232CSE 3~7V and 235kbps Baud Rate Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features Voltage range : 3V~7VThe highest Baud Rate : 235kbps typSize : 13x29mm (not including DB9 block)The conversion board uses a gold plated serial port, with power indicator light, can be used for microcontroller and PC communications, also can be used to download STC and so on.