AGPtek USB To MIDI Keyboard Interface Converter Cable Adapter Support Windows Win XP Win Vista Mac OS Turn your PC into a music studio by connecting a music keyboard to your computer with the USB MIDI cable. Comes with an AGPtek USB 2.0 All-in-One Card Reader. Easy to install with built-in driver; USB powered, no AC adapter needed LED power indicator; MIDI in & out signal indicator; Supports Windows 98SE/ME/2000/XP Mac OS 9x and Vista 1 in + 1 out MIDI interface; 16 MIDI input channels & 16 MIDI output channels