... controller providing a simple solution for updating RS-232 designs to USB using a minimum of components and PCB space. The ... RS-232 designs, all that is required to update the design from RS232 to USB to replace the RS232 level-translator with the ... usb to RS232, USB UART TTL 3.3v level and USB UART TTL 5v level. USB RS485 to RJ11, RJ45 cables, USB RS422 cables, USB Parallel cables, USB to Audio ...