It's based on RoyalTek REB-4216/REB-5216 GPS module, and the footprints is compatible with Arduino/MEGA boards. The regular GPS pins (RX, TX) can be connected to D0-D7 of Arduino.

Adding GPS to your Arduino has never been easier. Multiple GPS receivers attach easily to the shield, and with the example sketch (check below), you will be able to locate your exact position within a few meters. Here's where we are. GPS also gives you amazingly accurate time! It’s suitable for the following applications with Arduino or Arduino compatible boards :

Specifications:

• Automotive navigation
• Personal positioning
• Fleet management
• Marine navigation

**For pin configuration and electrical characteristics please visit the link bellow**

https://www.itead.cc/wiki/Arduino_GPS_shield