The flykantech.com Quad-I/O MIDI Interface Box features MIDI-Thru (4-In/4-Out) and MIDI Merge (2-In/4-Out), offering Six Operational Modes. Designed for standalone use without computer support, users can switch modes with a dedicated function switch button. The MIDI-Interface Box includes 8 X LED Indicators (four for inputs and four for outputs), providing clear visual feedback on mode selection and data I/O status. Encased in a durable metal housing, the flykantech.com Quad-I/O MIDI Interface ensures reliability and durability in professional environments, facilitating seamless connectivity and integration of Multiple MIDI Devices