This is a low cost clone of the Arduino UNO.  If you are looking for a low cost solution for your microcontroller needs then this is the board for you. 

Note: This board uses the CH340 Driver instead of the FTDI Driver

USB Cable is not included

Official version available here   

Specifications

• Microcontroller: ATmega328P
• Operating Voltage: 5V
• Input Voltage (recommended) 7-12V
• Digital I/O Pins 14 (of which 6 provide PWM output)
• Analog Input Pins 6
• DC Current per I/O Pin 20 mA
• DC Current for 3.3V Pin 50 mA
• Flash Memory 32 KB of which 0.5 KB used by bootloader
• SRAM 2 KB 
• EEPROM 1 KB 
• Clock Speed 16 MHz
• Length 68.6 mm
• Width 53.4 mm
• Weight 25 g