ITEM NAME:FT232 Module CP2102 USB to TTL Serial Port UART STC Download Cable Module #gib Store Home Promotion Hot Item Add to Fav.Using SILABS's CP2102 chip. Big board design, full function interface. With RXD TXD RST 3.3V 5V DTR DCD RI RTS CTS and other fully functional interfaces. Direct insertion computer USB interface design, you can not use the computer connecting wire or extension wire.