Roland Duo-Capture EX USB Audio Interface Used, but operation has been confirmed. This is a listing for the main unit only. Knobs function properly, and both input and output work without issue. You can use it immediately for recording and streaming. You can check the latest drivers and detailed specifications here: https://www.roland.com/jp/support/by_product/duo-capture_ex/updates_drivers/ (Please download and use the appropriate driver for your OS) ■Product Information Model Name: Duo-Capture EX (UA-22) Brand: Roland Input Terminals: XLR/TRS combo x 2 (Mic/Line/Hi-Z compatible) Output Terminals: TRS output x 2, Headphone jack Adjustment Knobs: Mixing knob, Volume knob MIDI input/output available 48V phantom power supported USB bus power, battery powered, AC adapter compatible ■Condition Main unit only Minor scratches from use (no functional problems) No crackling or noise Operation confirmed ■Shipping Will be wrapped in bubble wrap and shipped via Mercari delivery (anonymous). Instant purchase welcome. Thank you.