Compact and versatile - the MOTU Audio Express is great for reliable, high-quality sound with mobility! Thanks to MOTU's Hybrid interface technology, the Audio Express connects to any current Mac or PC via FireWire or high-speed USB 2.0. Connect your mic, guitar, keyboard, and digital input, and you are ready to make pro-quality recordings in your personal studio. Quickly balance the levels of your mic, guitar, keyboard, and a S/PDIF device, right from the front panel. Each instrument has its own volume control. Route inputs directly to any output pair, each with its own unique mix: main outs, line outs, S/PDIF out, and phones.