Description: This is a basic (and cheaper) version of the adapter,with no battery! Easy to use and very reliable! This adapter is designed to be fitted on the new MediaTek MT3329 GPS 10Hz. It will make your life a lot easier! It is EM-406 port compatible, with a built-in power regulator. On the bottom side, the PCB has an easy to solder pad area (you can also solder pin headers) allowing you to build your custom cable. The pads included are "EN" that enables or disables the device; it will just shut down the device for power saving (just leave unconnected if not used), "5V" (power supply), "OUT" (data out), "IN" (data in) and "GND" (ground). The included blue LED will blink while the GPS is searching for satellites and will remain lit when the satellites are fixed (and ready to go!).