This is specially designed for SwiftIO board. The pins on two sides are completely same as those on SwiftIO board.
There are also many additional multifunction grove connectors.
Let's take a look at these connectors:
	
8x 4 pin connector: 2 digital, 3 analog, 3 PWM, 2 I2C, 1 UART, 1 CAN
	
2x 8 pin connector: used for digital signal, SPI, UART
Thus, you could easily connect to different modules using grove cable. This will allow you get rid of a lot of jumper wires and be more at ease when building your circuit.
 
Specification
	
Operating voltage: 3.3 / 5V
	
Overall dimension: 81.3mmx56.3mm
	
Weight: 28g