Adafruit Ultimate GPS Breakout – 66 channel w/10 Hz updates – Version 3

Based on MTK3339 GPS chipset that can track up to 22 satellites on 66 channels.
High sensitivity receiver with -165 dBm sensitivity and 10 Hz updates.
Low power usage with only 20mA current draw during navigation.
Built-in datalogging ability.
Comes with one fully tested module, a piece of header you can solder to it for breadboarding, and a CR1220 coin cell holder. A CR1220 coin cell is not included.