Turn your PC into a music studio by connecting a music keyboard to your computer with the supplied USB MINI HD cable. 1 in & 1 out MIDI interface; 16 MINI HD input channels & 16 MINI HD output channels. USB powered, no external power needed, true plug and play. Compatible with most MINI devices like for Yamaha, Roland. Supports for Windows Vista/XP, Win7, Win8, Win10 and for Mac OS X operating systems. Instructions for Use: 1. Connect the cable marked "IN" to the MINI HD "OUT" socket of a MINI keyboard (or MINI device). 2. Connect the cable marked "OUT" to the MINI HD "IN" socket of a MINI HD keyboard (of MINI HD device). 3. Plug the USB cable into any free USB socket on your computer. 4. Open your music software program, e.g. Cubase, Sonar, MINI HD Connections, etc. 5. Set the music programs MINI HD in and MINI HD Out devices to "USB Audio Device". 6. Your USB to MIDI interface is now ready for use. 7. To save potential problems, it is recommended that this interface is always connected to the same USB. Specifications: Type: USB MINI HD cable Interface: 1 * USB, 1 * MINI HD in, 1 * MINI HD out Length: Approx. 2m / 6.56ft Colour:black Material:Zinc alloy Package Contents: 1 * Usb MIDI Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.