This is a MIDI thru box. I purchased it from Sound House three years ago, but it has been almost unused. The only accessory included is the USB cable. ■MIDI Thru Box ■Miditech, a long-established German manufacturer, has landed in Japan. The K32s, a compact USB-MIDI keyboard with built-in GM sound source and battery operation, is convenient! It was also featured on DTM Station! It distributes MIDI signals from one MIDI input to seven outputs. This is a very convenient item for building MIDI systems that combine multiple keyboards, sound modules, computers, etc. * Features ● This is a 1-input, 7-output MIDI thru box. ● Input MIDI signals are distributed to seven output terminals through an internal buffer circuit. ● Equipped with a red LED to display MIDI signals and a blue power LED to confirm signal flow. ● Power can be supplied via USB bus power or a power adapter. ● The compact, lightweight, and robust aluminum chassis ensures excellent durability. * Specifications * MIDI Input Terminal x 1 MIDI Output Terminal x 7 * USB Terminal x 1 * MIDI Signal LED x 1, Power LED x 1 * Size: 11cm x 6cm x 3.5cm * Weight: 0.16 Kg