pd The PDX25 is a powerful 2-in/2-out USB audio interface with RCA, combined XLR/Jack audio connections and a USB connection. This plug & play interface is designed as an audio interface between analog and digital audio sources without the need for additional devices such as a mixer. It is suitable for use on stage and in the sound recording studio as well as for home recording and multimedia applications. The interface is powered by USB so you don’t need to carry a power cable. Includes Audacity audio editor software.