This is a cymatic audio sync player, a well-known and highly regarded piece of equipment. I purchased it new from a UK online store. It can also be used as an interface. You can load audio files onto a USB memory stick and output them on 16 channels. It also has expandability with MIDI OUT, FOOT SWITCH, etc. I felt a sense of security during live performances that you don't get with a PC. Specifications: ■Wav file + MIDI file player The simplest 16-channel output Wav file + MIDI file player. It is ideal for multi-track playback in live performances by manipulators. Perfect for live performances and virtual sound checks, with 16-track audio playback, sampler triggering, synthesizer control, and lighting control. The dedicated playlist creation application (Windows version) allows you to set up for the stage. ■Main Features ・Direct playback from HDD drive connected to the front panel USB port (16 tracks, 24-bit, 44.1/48kHz) ・Offline playlist editing with Windows playlist creation application ・16CH unbalanced, analog 1/4" TRS (tip-sleeve) output ・2-input, 18-output USB audio interface (24-bit, 44.1/48kHz) ・Mac OS-X compatible core audio plug & play driver ・Windows PC compatible (Windows XP, Vista, 7 & 8 32-bit/64-bit) WDM and ASIO drivers ・iPad compatible (USB adapter required) Please try it for synchronization.