Here Some Details:

APM 2.8 Flight Controller: The APM 2.8 is an open-source flight control board that runs the ArduPilot firmware. It features a variety of sensors and connectors for interfacing with other components of an RC vehicle.

Straight Pin Configuration: "Straight Pin" indicates the pin headers on the flight controller are in a straight orientation. This can be relevant for ease of connection and integration into your specific drone setup.

M8N GPS with Built-in Compass: The M8N GPS module is a GPS receiver with improved accuracy. The built-in compass (magnetometer) provides heading information, enhancing the drone's navigation capabilities. The compass helps with orientation and direction sensing.

GPS Stand: The GPS stand is likely a mount or stand that helps position the GPS module on the drone. Proper GPS placement is crucial for optimal satellite signal reception and accurate positioning.

Shock Absorber: The shock absorber is a component used to reduce vibrations from affecting the flight controller and sensors. It helps maintain stability and accuracy in sensor readings, especially in dynamic flight conditions.

When using these components together: Connect the APM 2.8 flight controller to your drone's power distribution system, motors, and other peripherals.
Mount the M8N GPS module on the provided GPS stand and place it in an elevated and unobstructed position on your drone for better satellite reception.
Attach the shock absorber to reduce vibrations and ensure accurate sensor readings.