Description: Compact and Lightweight: The MIDI THRU 3 Thru Box Controller features a sleek and compact design with dimensions of 8.8cmx7.3cmx3.8cm/3.46inchx2.87inchx1.50inch, making it easy to integrate into any setup without taking up much spaceEfficient Communication: Experience MIDI data transmissions with communication capabilities, ensuring no delay in processing for smooth and uninterrupted performance1 In 3 Out: Enjoy MIDI performance in the studio and on stage. Easily connect MIDI devices with standard MIDI connector via MIDI cablesConstruction: Built with PP materials, the MIDI Thru 3 Box is designed to withstand wear and tear while featuring shock resistant properties to ensure longevityWide CompatibilityThis 1 in 3 out wired transmissions device can communicate standard MIDI commands. Support the combination of various standard MIDI commands Specification: Material: PPPower Supply: Use USB B to power the device, 5VDC (depending on the actual use, power supply may be no required) Size Chart: machine size: 8.8cmx7.3cmx3.8cm/3.46inchx2.87inchx1.50inchWith packaging size: 15cmx10cmx6cm/5.91inchx3.94inchx2.36inch Package Includes: 1 MIDI THRU 3 box 1 1M USB power supply line (USB A to USB B)1 Instruction card1 Certificate Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.