SMSL PO100 PRO MQA DDC USB Type-C Interface - Portable MQA Decoder

In this review the SMSL PO100 PRO is examined as a compact USB digital interface aimed at listeners who need high-resolution digital output from phones, computers, or consoles. The bottom line: it is for users who want a small, portable DDC that supports native DSD, high-sample PCM up to 32bit/768kHz and hardware MQA decoding without additional software. The PO100 PRO stands out for its XMOS XU316-based asynchronous USB handling and flexible output options, making it a practical tool for feeding dedicated DACs or digital inputs on external devices.

Key Features

• XMOS XU316 chip: Provides asynchronous USB processing for stable timing and better jitter performance when used with a compatible player or computer.
• High-resolution support: Handles PCM up to 32bit/768kHz and DSD native/DOP64 for playback of high-resolution and DSD files without downsampling.
• Flexible digital outputs: Offers Type-C input with I2S (LVDS), optical, and coaxial digital outputs to connect to a wide range of external DACs and receivers.
• Hardware MQA decoding: Performs MQA playback without extra decoder software when used with players that support ASIO or WASAPI output.
• UAC/I2S mode switches: Two internal switches let users select correct UAC modes or I2S configurations for device compatibility.
• Mini portable design: Compact metal housing slips into bags easily for travel and on-the-go use with phones, consoles, or laptops.

Who It's For

The PO100 PRO is best for audiophiles or hobbyists who already own a separate DAC or receiver and need a reliable digital interface to supply bit-perfect streams, including MQA and DSD, from modern hosts like phones, PCs, PS5, or a media streamer. It is also suited to users who value portability and plan to carry a compact interface for travel.

Those who should look elsewhere include buyers wanting a full integrated DAC with analog outputs or end users who prefer plug-and-play simplicity without any mode switching; the PO100 PRO requires correct UAC/I2S mode selection for some setups and does not provide analog headphone outputs.

Pros & Cons

Pros

• Supports high-resolution PCM up to 32bit/768kHz and native DSD for versatile file compatibility.
• Hardware MQA decoding works without extra software when paired with ASIO or WASAPI players.
• Multiple digital outputs including LVDS I2S, optical, and coaxial provide wide connectivity options.
• Compact, well-built unit praised for sound clarity, tighter bass, and perceived value for money.

Cons

• Requires manual mode switching for UAC/I2S which may confuse less technical users.
• No analog outputs included, so a separate DAC is still required for playback to speakers or headphones.

Specifications

Chipset	XMOS XU316
USB Input	Type-C USB (asynchronous)
Max PCM Rate	PCM up to 32bit/768kHz
DSD Support	Native DSD and DOP64
Digital Outputs	I2S (LVDS), optical, coaxial
MQA	Hardware MQA decoding (no extra software required)
Form Factor	Mini portable USB interface

Our Verdict

The SMSL PO100 PRO is a compact, well-engineered digital audio interface that delivers high-resolution and MQA-capable output for users who already own a DAC or need digital feeding options. It offers excellent value for those who prioritize clarity, connectivity, and portability, but it is not a substitute for a full DAC with analog outputs.

Frequently Asked Questions

Does the PO100 PRO require drivers?
The unit works with built-in Windows drivers for basic UAC operation, but ASIO/WASAPI player support is recommended for MQA playback.

Can it be used with a PS5?
Yes, it supports DOP64 and can be connected optically or coaxially to consoles that output digital audio.

Is analog output included?
No, the PO100 PRO provides digital outputs only; a separate DAC or receiver is needed for analog playback.