Specifications :

This IO Expansion Shield is specifically designed to facilitate an easy connection between Arduino Nano and many other devices. used for Arduino Nano direct, if your seal the Pin of the board also Compatible Arduino Duemilanove 2009 and UNO R1. AREF output
3.3V output
8 analog Pin with power output and GND
6 PWM Pin
1 Servo power input
I2C expansion Pin
Draw out all of the digital I/o mouth and analog I/o mouth, every IO mouth has the positive and negative power supply interface standard
Increase the DC power supply interface.
The NANO plate on the USB interface power supply current is actual only 50 ma, to bring high current equipment such as steering gear
Size:6x5.3x1.3cm(approx)