disco 3/21/14 replaced by Eleven Hundred V2 Advanced Gaming Authority. XL-ATX MoBo, 9 expansion slots accomidating elita GPU configurations-up to 13"-, 3-way NVIDIA or 4-way AMD Corssfire compatable, 200mm Blue LED top Fan, 120mm rear fan plus SEVEN optional fan mountings, Superior Cable Routing, 11 total Drive bays, USB3.0 x 2(internal mobo)TOP moounted power switch, tool-less bays-6 x 3.5" 3 x 5.25" and 2 2.5" thumbscrews, easy clean Front and PSU filters!