The SEEED-110060489 Expansion Board (GPS Expansion Board) is an expansion board manufactured by Seeed Studio. It has two GPIO pin headers, two SMA (SubMiniature version A) ports, as well as an external power supply port. The board can be used to easily connect a GPS module to the Raspberry Pi for location sensing, data logging, or other applications requiring geographical positioning. This expansion board is ideal for remote sensing projects requiring both high accuracy and low power usage. It has two GPIO pins, two SMA ports, and additional ports on the rear for digital output. The form factor makes it suitable for use with a variety of GPS modules.