Denon DJ SC3900 Digital Media Turntable/DJ Controller Real vinyl platter performance and accuracy with independently adjustable start and stop times Player Link function shares USB drives across multiple SC3900s (up to four) Compatible with Serato Scratch Live interface (in Hybrid Mode) and optimized for Traktor and Virtual DJ users Includes Denon DJ "Engine" Database PC/Mac Application (for USB Devices) MAC,Windows XP/Vista/Win7,8 Compatible