This Studer D21m Modular I/O System comes with an HD Link Card and includes a proper power supply.

Using this Studer D21m Modular I/O System is easy. First, make sure the power supply is properly connected. It's important to handle the system gently to avoid any damage. When not in use, keep it in a dry and cool place. Regularly check the power supply for any signs of wear. If you notice any issues, stop using it immediately and consult a professional. This way, you can ensure the long - term performance of your system.