A fair bit of cosmetic wear. There seems to be a 6dB mismatch in levels between channels 1 and 2. It's possible to manually set the gain levels in Totalmix to have the gains matching, if you were recording stereo mics.
The noise figures for each input channel, with nothing plugged in, are as follows: Ch1: - around -99dB, Ch2: around -97dB, Ch3: around -93dB, Ch4: around -93dB, Ch5: around -98dB, Ch6: around -98dB, Ch7: around -99dB, Ch8: around -99dB. Positive points: All I/O, including ADAT are functional.
It's totally usable in its current state, and its a brilliant interface. Not tested: MIDI, Word Clock, S/PDIF (although I had a Lucid AD9624 connected via S/PDIF to it just fine about a year ago). The price reflects the condition and issues described.
Please take the time to carefully study the description. This is not a perfect interface, and although I've tested it fairly extensively I may not have captured everything.
Having said that, until not so long ago it was functioning just fine as the main interface for my home studio. 36 Channel USB 2.0 Audio Interface. 18x In- and outputs, simultaneously usable.24 Bit / 192 kHz AD/DA converter. 2x Mic preamps with digitally controlled gain and individually switchable 48V phantom power. The item "RME Fireface UC USB audio interface" is in sale since Monday, February 22, 2021. This item is in the category "Musical Instruments\Pro Audio Equipment\Audio/MIDI Interfaces".
The seller is "hazboss" and is located in Manchester. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia. Number of Channels: 36