RME
RME Digiface USB
Best portable interface for professionals needing high-channel digital audio routing.
The RME Digiface USB is a highly versatile and compact digital audio interface designed for seamless integration into your workflow. It offers 66 channels of audio at up to 192 kHz resolution, making it suitable for a wide range of professional audio applications. Featuring 4 optical ADAT/SPDIF I/Os and a high-quality analog line/phones output, it provides flexible connectivity. The interface is bus-powered, eliminating the need for an external power supply, and its small size and lightweight design enhance portability. It includes RME's powerful TotalMix FX mixer for advanced routing and monitoring, along with DigiCheck for comprehensive audio analysis.
$629.00
More Digiface Options
Owner Satisfaction
4.7
/ 5
Category Rank
41
/ 439
#41 in Audio Cards & Adapters
Price vs Category Average
-44%
Below average
Input Optical ADAT / SPDIF
4609583224481624964824192
/ x TOSLINK, format according to Alesis specification, SPDIF compatible (IEC ), Standard: channels bit, up to kHz, Double Speed (S/MUX): channels bit kHz, Quad Speed (S/MUX): channels bit kHz
Who it's for
- Studio engineers managing large-scale multi-channel digital setups
- Professional producers requiring rock-solid, low-latency performance
- Artists needing flexible, zero-latency monitoring and routing control
Who should skip it
- Beginners lacking existing external analog-to-digital conversion hardware
- Solo musicians seeking an all-in-one, standalone recording interface
- Users wanting a simple, direct connection to studio monitors
Performance breakdown
Driver Stability
Industry-leading reliability ensures your sessions remain uninterrupted and glitch-free.
Routing Flexibility
TotalMix FX provides unparalleled control over complex signal paths and monitoring.
Portability
Bus-powered design makes this a powerhouse for mobile recording setups.
Channel Capacity
Massive I/O count handles large-scale digital routing with ease.
Latency Performance
Near-zero latency keeps your tracking experience tight and responsive.
Build Quality
Compact, lightweight chassis feels durable enough for frequent travel.
Key Specs
Input Optical ADAT / SPDIF
4 x TOSLINK, format according to Alesis specification, SPDIF compatible (IEC 60958), Standard: 32 channels 24 bit, up to 48 kHz, Double Speed (S/MUX): 16 channels 24 bit 96 kHz, Quad Speed (S/MUX4): 8 channels 24 bit 192 kHz
Output Optical ADAT / SPDIF
4 x TOSLINK, format according to Alesis specification, SPDIF compatible (IEC 60958), Standard: 32 channels 24 bit, up to 48 kHz, Double Speed (S/MUX): 16 channels 24 bit 96 kHz, Quad Speed (S/MUX4): 8 channels 24 bit 192 kHz
Output Analog Phones 33/34
Dynamic range (DR): 110 dB RMS unweighted, 113 dBA, Frequency response @ 44.1 kHz, -0.5 dB: 0 Hz – 20.8 kHz, Frequency response @ 96 kHz, -0.5 dB: 0 Hz – 45 kHz, Frequency response @ 192 kHz, -1 dB: 0 Hz - 89 kHz, THD@-1dBFS:-96dB,0.0016%, THD+N @ -1 dBFS: -95 dB, 0.0017 %, Channel separation: > 100 dB
Output
6.3 mm TRS jack, unbalanced: Output impedance: 2 Ohm, Output level at 0 dBFS, 1 kOhm load: +9.5 dBu, Max power @ 0.1% THD: 50 mW
Digital Clocks
Internal, ADAT In, SPDIF In
Low Jitter Design
< 1 ns in PLL mode, all inputs
Supported sample rates
28 kHz up to 200 kHz
Power supply
USB bus power
Features
- Extremely compact and portable design
- Bus-powered for convenient mobile use
- Powerful TotalMix FX for flexible routing and monitoring
- Includes DigiCheck for audio testing and analysis
- Low latency and industry-leading stability with RME USB drivers
- DC-coupled outputs for headphone amplifier functionality
- Supports SMUX and SMUX4 for higher sample rates
- Simple Plug and Play installation
What customers say
Customers consistently praise the RME Digiface USB for its exceptional quality and unwavering reliability. Users frequently highlight its robust build and professional grade performance, making it a trusted component in various audio setups. The device's stable drivers and seamless operation contribute significantly to a positive user experience, reinforcing its reputation as a dependable workhorse. While a premium investment, its consistent performance and longevity are often cited as strong justifications for the cost, underscoring its perceived high value.
Know before you buy
No, the unit is entirely bus-powered via USB. This makes it an excellent choice for mobile recording setups where minimizing cables and power adapters is a priority.
Yes, it features four optical ADAT/SPDIF I/Os, allowing you to easily expand your system by connecting external preamps or digital converters. It supports up to 66 channels of audio, making it a robust hub for larger studio configurations.
The analog output is designed for monitoring and features DC-coupled outputs, providing a clean, high-quality signal. While it works well for most professional monitoring tasks, keep in mind it is optimized for standard studio headphones rather than extremely demanding audiophile models.
TotalMix FX provides a powerful, hardware-based routing and mixing engine that allows you to create complex monitor mixes with near-zero latency. It gives you complete control over every input and output, independent of your DAW software.
Yes, it supports sample rates up to 192 kHz. When operating at these higher rates, the interface utilizes S/MUX4 technology to maintain high-fidelity audio across its optical connections.
Yes, the Digiface USB is compatible with both platforms. RME is widely recognized for its industry-leading driver stability and low-latency performance on both operating systems.
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$629