This USB to Serial UART (TTL level) adapter. It allows you to connect your computer through USB port and use it as a regular serial communication. All USB protocol is handled within this adapter.

There is no other device or programming required. The adapter is perfect for embedded systems that require a serial connection to a computer. The board attaches directly to the USB bus via a standard type A receptacle connector. It shows up on any Windows computer as a standard serial COM port. Any applications that talk to this COM port is automatically convert to USB and back to UART to your target board.

USB to 3.3V Serial UART TTL Header Features

The Cable provides a USB to TTL Serial interface to 6-pin header.
Single board USB to asynchronous serial data transfer interface
Entire USB protocol handled by the electronics in the cable USB
UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity
Fully assisted hardware (RTS#/CTS#) or X-On / X-Off software handshaking.
Data transfer rates from 300 baud to 3 Mbaud at TTL levels.
+3.3V output allows external logic to be powered from the USB port
Transmit and receive LEDs
UHCI / OHCI / EHCI host controller compatible
Low USB bandwidth consumption.