Name: A/D Expansion
Type: Arduino MEGA Shield
Version: 1.0.0
Author: Dubravko Penezic
Copyright: Creative Commons BY-NC-SA v 3.0
Implemented function:

• Serial Connectors
• I2C/TWI Connector
• Digital Pin Connectors
• Digital I/O Connectors
• Analogue Pin Connectors
• Analogue/Digital Connection Pads
• Selectable Power Line +5V (from Arduino bus or external supply)

PCB Top image:

PCB Bottom image:

Digital Pin: 2, 3, 4, 6, 7, 8, 11, 12, 37, 39, 41, 43, 45, 46, 47, 48
Analogue Pin: 0, 1, 4, 8, 9, 11, 12, 13, 14, 15
Power Pin: GND, +5V (or +5 from external supply)

Schematic are available in follow file :