Pack of ONE (1), DMX Master controller with USB interface for PC DMX Master 512 Channel controller with USB interface for PC Software Control Control any DMX equipment, i.e. RGB Slave Module EV-DMX-MOD-2A for RGB Flex strip EV-ST-WP-RGB Comes with USB cable, 2 x XLR plugs, Install CD Drivers for Windows 7, XP, 2000, 98se. FreeStyler Software provided. No DC Power supply required &ndash; uses 135mA from USB.