This MIDI interface is nearly perfect. It is lightning fast and comes with the USB cable to connect it to your computer. I have it connected with the Korg Toneworks AX3000B and they work very well together. It does not require any batteries or power cords, because it draws its power via the computer USB port. I have a computer that used the Windows 98 platform; the XMIDI 2x2 software only works with Windows XP or higher. I do have another computer that runs Windows XP though, which I will use. To sum up...it the E-MU XMIDI 2x2 works well.