Ploytec GmbH does ASIO drivers &#40;Windows and Mac&#41; and hardware for digital audio via USB1.1, USB2.0 and USB3.0. They do reference designs and developed the πλ² and πλ² Leukos. The PL2 is a compact duophonic mono analog synthesizer PL2 that is powered and controlled via 5-pin MIDI. Alternatively the device can be powered by 5 VDC 100 mA using the included USB Micro-B port. The device can generate a wide variety of sounds using two square wave oscillators that can be connected together to create saw, sine, and pulse waveforms.