? ? Tips of Use: 1) The usb interface compatible usb 1.1 and 2.0 device; 2) OTraki USB MIDI cable can't use for the keyboard or device that has type-B interface, can used for the device only with independent midi input and midi output slot (please reference to the 2nd picture). 3) If you want use it with smartphone or tablet, you need add a OTG cable (OTG cable not included) ?Plug and Play?: MIDI to usb cable converter built-in driver, just plug "OUT" cable to "In" interface of keyboard & device, Plug "IN" cable to "Out" interface of keyboard & device, no need download any app. USB bus power supply, support 16 midi input and 16 midi output ?High Quality Workmanship?: USB midi interface adapter uses anti-electromagnetic interference technology, high-purity copper wire material to ensure fast and safe audio transmission. High-performance FPT processing chip ensures stable and uninterrupted input signal and enjoys fast and stable midi data transmission. Soft rubber pipe, durable and protective ?Intelligent LED Indicator?: The usb in-out midi cable data input and output indicator, can display different lights to indicate different status, red means power on, blue means signal connection ?Applicable Most of Devices?: 1 in + 1 out MIDI interface with 6.5ft cord. The new design usb to midi adapter supports most of standard MIDI interface devices on the market, such as electronic drum, MIDI keyboards, effects, piano, etc. If you can't make sure, please reference to the 3rd picture or contact us. The midi to usb cord with 5 pin din, well compatible with most computer systems, such as Windows XP, Vista, Win7, Win8, Win10 and OS X operating systems