This is a Raystar GPS Receiver module. It is a fully-featured, high performance, low power receiver module specifically designed for navigation and tracking applications. It is capable of performing three types of positioning: autonomous, real-time kinematic (RTK) and post-processing kinematic (PPK). The module is equipped with an embedded flash, so it can save ephemeris and precise orbit data, and it supports a range of communication protocols, including I2C and multiple serial port interfaces. The module also has an integrated, configurable, dynamic power budget system.