Eurolite USB-DMX512-PRO Interface, USB-DMX512-PRO Interface, Interface between notebook or PC and DMX devices, Tested with the following DMX lighting control software (available for free on the internet) FreeStyler from version 3.37, Drivers must be manually installed, Power supply via USB, Recommended system requirements: Min. Pentium 3 processor 1 GHz, 128 MB RAM, Tested operating systems: Windows XP Home, Windows XP Professional, Windows Vista, Windows 7 also 64 bits, Linux: OLA-OpenDMX.net, Technical specifications: Power supply: 5 V DC, 500 mA via USB, Input: USB 1.1 / USB 2.0, DMX output: 512 channels, DMX512 connection: 3-pin XLR,