The UX16 USB-MIDI Interface is about the easiest way to connect your musical keyboard to your computer. If your computer has a USB jack (most computers in the last few years do), you simply connect the UX16 to your USB connector on your computer and plug the MIDI in and out cables (shown shortened in the photo above - the actual length of the USB cable is 2 feet and the length of the MIDI cables is a little over 4 feet) into your keyboard. You will have to install a "driver" so that your computer knows about the UX16 and the driver is included with the interface on a CD-ROM. The indicator lights show if the UX16 is connected properly to your USB jack and there are also lights to indicate when it is receiving MIDI IN & OUT. This is very handy to verify operation.