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RME Fireface UFX III USB 3.0 Audio Interface

24 bit/192 kHz USB audio interface with 188 input and output channels for analog and digital signals

MFR# Fireface UFX III

Product Description

As successor of the Fireface UFX+, the RME Fireface UFX III raises the bar for USB interfaces to a new level: 12 analog I/O channels, 16 ADAT channels, 1x AES/EBU I/O and 2x MADI I/O with 64 channels, as well as MIDI, Word Clock and USB 3.0 connectivity allow an unmatched variety and flexibility for professional studio use. The Fireface UFX III is completed by groundbreaking RME technologies, such as SteadyClock FS, TotalMix, DURec and more.

The Fireface UFX III is based on a newly developed analog and digital board. While the analog board offers, for example, DC-coupled analog outputs as well as new AD and DA converters with improved THD+N value, the digital board also enables interesting new features thanks to updated high-tech components.


The front panel of the Fireface UFX III provides four high-performance XLR/TRS combo inputs for microphone, instrument and line signals, two stereo headphone jacks with +19 dBu output level, MIDI I/O, and a USB port. In combination with the DURec function (Direct USB Recording), the USB port allows independent recording of selected input and output signals (up to 80 channels) to a connected USB storage medium.

The rear panel reveals the full connectivity of the Fireface UFX III. Besides another MIDI I/O, the two optical ADAT I/Os, an AES/EBU I/O, and eight balanced analog outputs with line level (including XLR stereo monitor outputs) are available. With the new Multi-Mode, the two ADAT I/Os can be used as separate optical SPDIF inputs and outputs in addition to the AES I/O.

Furthermore, the Fireface UFX III offers an optical MADI interface (SC) with 64 bidirectional channels. The Word Clock connectors (BNC) work as additional coaxial MADI input and output if required. The Fireface UFX III is connected to the computer via USB 3.0. In compatible USB 2.0 mode, all analog and digital I/Os are available, except for the MADI channels. The second USB port on the rear panel is used to connect an optional ARC USB remote control.


Via the digital DURec (Direct USB Recording) recording function, up to 80 inputs and outputs of the Fireface UFX III can be recorded directly to (and read from) a USB storage medium. Therefor DURec uses the integrated DSP which provides stand-alone operation without the need for a computer. The fields of potential applications include stand-alone field recordings, live and rehearsal recordings, or playback of live recordings for virtual soundchecks. The automatic naming of the tracks in the DAW according to the assigned names in the TotalMix FX software proves to be very practical.


With SteadyClock FS the Fireface UFX III features RME's latest clock and jitter suppression technology. Besides further reduced inherent jitter, SteadyClock FS offers extremely effective jitter suppression even at low frequencies on all digital input signals. Also integrated are both the DSP-based TotalMix FX mixer with its comprehensive routing, monitoring and effects options, and the DIGICheck analysis tool, which allows measuring and analyzing the digital data streams to and from the Fireface UFX III with highest precision.


The Fireface UFX III comes with on-board DSP via RME's TotalMix FX which includes Compression/Dynamics, EQ, Reverb, and Delay. For units purchased from authorized RME dealers in The Americas, customers will also receive 3rd Party Plugins from iZotope (Ozone 10 Elements), Scuffham Amps (S-GEAR), Brainworx (Opto-X), Brainworx (BX Masterdesk), and Antares (Auto-Tune Unlimited).


In addition to driver-based USB operation and stand-alone mode (without a connected computer), the Fireface UFX III offers a Class Compliant mode for native operation with Windows, macOS and Linux. As the first RME audio interface with full USB 3.0 support in CC mode, the Fireface UFX III provides all 94 I/O channels driverless. In addition to the use with a computer, the CC mode allows controlling the UFX III via the optionally available TotalMix FX for iPad app.


  • 94-in/94-out USB 3.0 audio interface perfect for large-scale projects
  • Improved AD/DA provides pristine audio quality
  • SteadyClock FS technology provides jitter-free audio
  • 4 mic/line preamps with plenty of musical gain
  • 8 line channels via TRS inputs along with 2 XLR outputs and 6 TRS outputs provide extensive analog I/O
  • ADAT optical and AES/EBU XLR provide expansive digital I/O
  • 128 MADI channels for large professional applications
  • Incorporate external hardware with MIDI I/O
  • DURec function (Direct USB Recording) allows independent recording of selected input and output signals (up to 80 channels) to a connected USB storage medium
  • TotalMix FX DSP mixer offering comprehensive routing and monitoring options, as well as the DIGICheck Analyzer allowing to measure and analyze the digital data feed in both directions with maximum precision
  • Internal DSP for 188 channels of EQ and dynamics processing, a reverb/delay bus, and auto microphone gain
  • Remote control using TotalMix Remote software on a Mac, PC, or iOS device
  • DigiCheck tool, iZotope Ozone 10 Elements, S-Gear Guitar Amp Sim, Brainworx bx opto and bx masterdesk, and Antares Auto-Tune Unlimited software included

Product Specifications

Condition New
Unit Weight 6.6 lb
Chassis 19-inch Rack-mount
Rack Spaces 1U
Input Connectors AES/EBU XLR, BNC, Optical, 1/4-inch TRS, Analog XLR
Output Connectors AES/EBU XLR, BNC, Optical, 1/4-inch TRS, Analog XLR
Computer Connection USB
Number of Preamps 4
MIDI Connections In, Out
Clock I/O In, Out
Maximum Sampling Rate 192 kHz
Digital Format ADAT, AES/EBU, MADI

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
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From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
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