The MSB Technology Pro USB is an essential high-performance accessory designed to unlock the full potential of computer-based audio with MSB’s premier DACs. This compact adapter acts as a crucial bridge, converting the USB audio signal from a computer or music server into MSB’s proprietary, optically isolated ProISL (Pro Isolated Synchronous Link) format.

Its primary benefit lies in providing 100% electrical isolation, completely severing the noisy electrical connection between the digital source and the sensitive DAC circuitry. This eliminates ground loops and noise interference, allowing the MSB DAC to perform at its absolute best. The Pro USB operates synchronously with the DAC’s master clock, significantly reducing jitter and preserving timing accuracy.

Supporting PCM up to 24 bit/768 kHz and DSD up to 8xDSD, along with full MQA decoding, the Pro USB ensures compatibility with the highest resolution audio files. Furthermore, its use of fiber optic cabling for the ProISL connection allows for cable runs up to 1 km without degradation, enabling remote placement of noisy source components. The MSB Pro USB is a vital component for audiophiles seeking the purest computer audio playback from their MSB DAC system.

- 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

- Fully synchronous to the DAC
- Offers 100% electrical isolation between source and DAC
- Works with most music server and computer systems that support USB audio
- Uses the ProISL interface with error correction and detection
- Virtually limitless in cable lengths (up to 1km) between the USB module and the DAC
- Works at rates up to 24/768kHz and 8xDSD (with a PC)

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

USB Connection Format: Type B Powered USB
Power Consumption:USB bus powered, 400mA @ 5V constant draw
Supported Formats:
- 44.1kHz - 705.6kHz PCM Playback
- 48kHz - 768kHz PCM Playback
- 1x - 8x DSD support
- Full MQA decoding

Pro ISL Fiber Cable:
Cable Type:LC Duplex Single Mode Fiber Cable
Connectors:LC UPC
Supported Cable Lengths:up to 1 km

Dimensions:
Width: 1.95 inches (49.53 mm)
Length: 6 inches (152.4 mm)
Height: 0.88 inches (22.352 mm)

Orders ship Sunday through Friday from our offices in Dubai, UAE.

In-stock products typically ship within 48 hours and should be expected to arrive in 3-4 business days. Orders outside of the UAE should be expected to arrive in 5-7 business days.

Pre-order and backorder products will state the approximate delivery timeline beside the Add To Cart button.

If you would like to place a custom order, chat with our specialists for a guided shopping experience. Once your order has been placed, a timeline will be provided depending on your order details.

- Free delivery within the UAE
- Shipping charges will be calculated upon checkout for orders outside of the UAE (Bahrain, Oman, Kuwait, Saudi Arabia & Qatar).
- Taxes and duties are calculated according to the applicable laws of the state or country an item is shipped to and are the customer's responsibility.

For additional information on shipping and our exchange & return policy visit our help center.

Installation charges are applicable and can be paid upon delivery for our clients based in Dubai.

- Installation Charges: AED 450 Per Hour
- Speaker Cables: AED 32 Per Meter
- Trunking: AED 10 Per Meter

For clients based outside of the UAE, please contact our specialists and we will share an estimate based on your requirements.