RME Fireface UCX (first generation). I purchased it new around 2011, but its usage frequency was very low, and there are no noticeable scratches or stains. I have stored it in recent years as I haven't had the opportunity to use it. I have confirmed that the unit powers on. *Currently, my operating environment is Apple Silicon (M2) + macOS Tahoe, so I have not performed detailed operational checks in the latest OS environment. I previously used it without any problems in an Intel Mac environment. Please consider this, understanding the supported OS and connection environment. [Included Items] ・Main unit ・Power adapter ・Original box ・Manual Due to the item being used, no claims or returns are accepted.