1. High Performance Original FT232RL: This module offers steady performance. Test shows a baud rate of up to 3Mbps, but actual speed may vary due to the limitation of the serial port software.
2. Built in External 12M Oscillator: Equipped with an external 12M oscillator, it ensures more stable operating when using Bit Bang function. The chip also integrates an internal oscillator.
3. Wide Compatibility: This module is compatible with various systems including for OS X, for Linux, for Android, for CE, and for 7 8 8.1 10, offering a wide range of usability.
4. Flexible Power and TTL Level Setting: It supports 3.3V 5V external power supply and TTL level setting. Features a red POWER LED, and 2 green TXD and RXD LEDs for easy identification.
5. 4 Signal Pins Available: This FT232RL USB to TTL serial converter adapter module includes four signal pins, TXD, RXD, RTS, CTS, for versatile connections.

Spec:
Item Type: FT232RL USB to TTL Serial Adapter Module
Material: PCB
Main Chip: FT232R
Supported Systems: for OS X, for Linux, for Android, for Wince, for 7 8 8.1 10
USB Interface: 2.0
Pin Definitions: CTS, RTS, RXD, TXD, GND, VCC
Baud Rate: 300bps to 3Mbps

How to Use:
Usage (when working with MCU) VCC:
Outputs 3.3V or 5V (the module is USB powered) GND: Connects to GND.
RXD: Connects to MCU.TX (signal direction: MCU.TX>>FT232>>PC.RX).
TXD: Connects to MCU.RX (signal direction: MCU.RXRTS: Connects to MCU.CTS (signal direction: MCU.CTSCTS: Connects to MCU.RTS (signal direction: MCU.RTS>FT232>PC.CTS).

packing list:
1 x FT232RL USB to TTL Serial Adapter Module
1 x Line
1 x User Manual