What is essential to have for a computer when working with digital mixers?

Having the appropriate peripheral ports on a computer is essential when working with digital mixers because these ports are critical for establishing connections between the computer and the mixer hardware. Digital mixers often require specific interfaces, such as USB, Thunderbolt, or MIDI, to communicate effectively with the computer. Without the necessary ports, it would be impossible to transfer audio data, control mixer settings from software, or receive input from the mixer into the computer for recording or processing.

The other options, while potentially useful in various contexts, do not directly address the primary need for interfacing with a digital mixer. A backup power supply adds redundancy for power outages, an advanced graphics card can enhance video performance, and Wi-Fi capabilities facilitate wireless connectivity, but none of these are as critical for the direct operation and integration with a digital mixer as having the right ports.