RME Fireface UCX II 40-Channel USB 2.0 Audio Interface

The RME Fireface UCX II is a professional audio interface designed for studio recording, live sound, and broadcast applications. It serves as the central hub for connecting microphones, instruments, and outboard gear to a computer via USB 2.0, enabling high-quality audio capture and playback. This half-rack unit consolidates extensive connectivity and advanced routing capabilities typically found in larger systems into a compact, portable format suitable for both fixed installations and mobile setups. The interface features RME's proprietary SteadyClock FS technology, which utilises a femtosecond clock to minimise jitter and ensure pristine audio conversion across all digital formats. It includes two combination XLR/TRS microphone/instrument/line inputs on the front panel with digitally controlled preamps, plus two additional line/instrument inputs. The rear panel hosts eight balanced analogue line inputs and outputs, alongside comprehensive digital connectivity including ADAT, SPDIF coaxial, AES/EBU, and MIDI. The integrated TotalMix FX mixer provides flexible signal routing with effects processing, and the device can store six complete setup states for instant recall. Ideal for musicians, producers, and audio engineers requiring reliable, low-latency performance, the Fireface UCX II operates in class-compliant mode for broad compatibility with Windows, Mac, and iOS systems. Its standalone functionality allows it to work without a connected computer, making it versatile for live sound or as a digital mixer. The clear colour display and intuitive front-panel controls facilitate quick adjustments, while DC-coupled outputs support control voltage for modular synthesis applications.