☆ 500 yen discount for account follow ☆ ★★★ (^-^) Price negotiations are welcome ( ^ω^ ) ★★★ This is a DAW physical controller called Mackie Control Universal. It is designed to allow intuitive hands-on control of mixing, editing, and automation in Digital Audio Workstation (DAW) software. The main features and rear panel connections are as follows: Main Features Motorized Faders: Features 100 mm touch-sensitive motorized faders that synchronize with the movements of the mixer in the software. V-Pot: Equipped with rotary encoders (V-Pot) that can control various parameters of software plug-in effects and virtual instruments. DAW Integration: Seamlessly integrates with major DAW software using Mackie's proprietary communication protocol or HUI protocol, and operates plug-and-play. Expandability: Channel count can be expanded by adding optional Mackie Control Extender Pro or C4 Pro modules. Rear Panel Connections The following connection ports can be read from the image on the rear panel: USER SWITCH: Jack socket for foot switches, etc., to which the user can assign functions. EXTERNAL CONTROL: Jack for external control pots to set variable parameters according to the host application, such as master volume. MIDI IN/OUT: There are three standard MIDI ports (DIN connectors) for connecting MIDI devices and expansion units. EXTERNAL POWER: Power input for connecting the included AC adapter. POWER: Rocker switch to turn the power on/off. Overall, there are minor scratches and dirt associated with use. The base of the switch that is pressed has fallen inside the main unit, so repair is required for use. This is a defective item with unconfirmed operation, so please understand this. Please check the photos for more details on the condition. [Brand] MACKIE [Product Condition] Has some scratches and dirt 0003