Steinberg UR12 USB Audio Interface 24-bit/192 kHz USB 2.0 audio interface 1 Class-A D-PRE mic preamp supporting +48V phantom power 1 Mic input(XLR) and 1 Hi-Z instrument input (TS), 2 line outputs(RCA) Cross-platform compatibility with Windows, OS X and iPad (with Apple iPad Camera Connection Kit/Lightening to USB Camera Adapter) USB-powered for mobile recordings with Mac and, additional USB mini socket for power source connection when used with the iPad