Using this AMX NMX-NVR-N6123 Network Video Recorder is easy. First, make sure it's connected to the correct power supply. Then, open the login interface and enter the username 'admin' and password 'password'. When using it, keep it in a dry and cool place to avoid overheating. Regularly check the power supply to ensure stable operation. Also, don't expose it to strong magnetic fields. If there are any problems, contact customer service right away.