The Inventek ISM300F1-C4 is a SiRF Star III 20-channel Global Positioning System (GPS) receiver module (SBAS enabled) offered in an extremely compact Surface Mount Device (SMD) module form factor The module provides high sensitivity, high gain, and low power. It is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of the SiRF Star III architecture.