The Crystal PnP Audio System MPU-401 is a sound card or audio device, often associated with legacy audio hardware produced by Crystal Semiconductor (which was later acquired by Cirrus Logic). The MPU-401 part refers to a standard interface for MIDI (Musical Instrument Digital Interface), which was common in many audio systems in the 1990s and early 2000s. MPU-401 is a protocol for interfacing MIDI devices, and the Crystal PnP (Plug and Play) Audio System supports both MIDI and general audio output functions.
In modern contexts, this could refer to either:
- A legacy sound card: older hardware often used for sound output and MIDI music.
- An onboard audio chipset: some motherboards may feature a Crystal PnP Audio chipset.
The Windows driver for this device is essential for the operating system to properly recognize and utilize the Crystal audio hardware for sound playback, MIDI functionality, and other audio processing tasks.
Crystal PnP Audio System MPU-401 ?? drivers / IBM 264545U
*CSC0003 <---- Device ID matches with our database
Compatible IDs:
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