The Pro USB is a USB to ProISL adapter. This allows you to play music from a computer or server via USB into our DAC via our isolated, clock synced ProISL interface.

The benefits of this system are mainly be for isolation of noisy computer solutions.  Using any length (up to 1km) Pro ISL Cable, the computer/server can be removed from the audio system.  This removes the need for network cables in the system setup.

Key Features

• 768kHz PCM Playback
• 8x DSD support*
• Full MQA decoding*
• 100% Electrical isolation between the DAC and server/computer
• Uses the audio clock from the DAC
• Supports ProISL cable lengths up to 1km without any loss
• Requires ProISL Input module in the DAC
• Will only work with current DACs (Discrete, Premier, Reference, and Select)

*8x DSD and MQA support require firmware updates in the DAC

Multi-part Solution

The Pro USB is one part of a multi-part low noise USB solution. It converts the USB signal from your computer into MSB’s proven proprietary Pro ISL format. The full connection requires the following:

• Roon Core / Server / Computer
• Current generation MSB DAC
• Pro ISL Input Module
• Pro ISL cable
• Pro USB