6 pin Sh connector TxD/RDx/GND/VCC/SCL/SDA
4 pin sh with ony two pins SCL/SDA connet to 3.3 i2c port on mega EZ3 black.
4 pin sh with TxD/RDx/GND/VCC connnect to serial port 2
This cable can also be used to connect the GPS to the normal MEGA EZ3.0 BLUE. Just remove the SCL/SDA lines with a small X-Acto knife just lift up the tabs and pull them out.
This cable can also be used to connect the GPS to the flip navigation board