Main Street 49-Key MIDI USB Controller Keyboard: * Includes 49-key multifunctional keyboard and a USB cable * Standard piano keys with initial touch * LED light shows current status and parameters * Assignable slider, pedal, pitch bend wheel and modulation wheel * PC upload and download and adjustable keyboard velocity * Compatible with Windows XP, Vista, Mac OSX and any other major sequence software * Drive free and hot plug supported * USB interface * On/off switch * USB and pedal input * Power supplied by USB or optional 12V DC adapter * Keyboard dimensions: 31.25"W x 2.25"H x 8.75"D * 6-month warranty from the original purchase date