Ready for Your Programming Needs
USB to serial adapter is seen as a COM port by your computer/laptop, and is available for use by any program that accesses COM ports. 
It works great for programming microcontrollers such as the arduino, boarduino, Bareduino, Raspberry Pi, ESP8266, micro minimOSD, and Atmel Xmega Xplained, Atmega328 mini pro, or any other that can be programmed over serial.

Feature：
The 232RL integrates EEPROM for IO configuration and storage of USB VID, PID, serial number and product description information.
A level shifter is integrated to support wide range of 5V-2.8V.
The I/O pins are highly capable of driving multiple devices or long data lines.
The power-on reset circuit is integrated internally.
It can generate its own clock without the need for external crystal oscillator.
A power supply decoupling RC circuit is integrated internally.
The pins are clearly defined and easy to use.
The connection is stable. When the connection error is stuck, simply unplug and plug it in again to reconnect it. The system does not need to be restarted.

Which allow FTDI devices to work with the following operating systems
Windows 10 32,64-bit
Windows 8/8.1 32,64-bit
Windows 7 32,64-bit
Windows Vista and Vista 64-bit
Windows XP and XP 64-bit
Windows 98, 98SE, ME, 2000, Server 2003, XP, Server 2008 and server 2012 R2
Windows XP Embedded
Windows CE 4.2, 5.0 and 6.0
Mac OS 8/9, OS-X
Linux 2.4 and greater 
Android (J2xx)

Download Drivers：http://www.ftdichip.com/Drivers/VCP.htm；Installation Guides：http://www.ftdichip.com/Support/Documents/InstallGuides.htm
Built-in a new and original FTDI IC device FT232RL, which handles all the USB signalling and protocols. TTL levels of 5V and 3.3V adjustable design, and draws power directly from your PC/laptop via the USB connection, no need for an external power adapter.
Provides access to UART Transmit (Tx), Receive (Rx), RTS#, CTS#, VCC and GND connections; POW(power), RXD/TXD transceiver communication LED indicator design, which can show serial adapter status and data activity at a glance.
Windows 8 and above OS, Linux and Mac OS will install FTDI driver automatically, but NOT compatible with Chrome OS.
Typical applications: USB to RS232/RS422/RS485 converters, Support EEPROM, Vendor ID re-write, unbrick routers and Mprog3.5, interface to GPS modules, flash firmware on hard drive, update transmitter, interface to set top box and more.

Packing List:

2 * USB to TTL Adapter
20 * Du-pont Cables (20cm female to female)