This is a high - quality AES/EBU card from Studer. The part number is A949.0424. It offers 16 - channel input and 16 - channel output, perfectly fitting the D21m Modular I/O System, bringing stable and efficient audio signal transmission.

Using this Studer AES/EBU card is easy. First, make sure your D21m Modular I/O System is powered off. Then, carefully insert the card into the appropriate slot. After that, power on the system. When using, avoid exposing the card to extreme temperatures or high - humidity environments. For maintenance, keep it clean by gently using a dry cloth to wipe it every few months. If you notice any abnormal performance, power off the system immediately and check the connections.