ITEM NAME:6 in 1 CP2102 USB to TTL 485 232 Serial Port 3.3V/5V Converter Module Board #gib Store Home Promotion Hot Item Add to Fav.1 x 6 in 1 CP2102 USB to TTL 485 232 Module. Module interface: The module has 3.3V, 5V, GND power interface, serial TTL level TXD, RXD interface, 232T, 232R interface of 232 serial port, 485 A, B interface, DTR, RTS interface, which is convenient for downloading the program of single chip computer such as DSP430.