ASUS CrossFireX Support AMD A55 FCH Micro ATX DDR3 2200 FM1 Motherboards F1A55-M LX PLUS MD A-& E2- series Accelerated Processor with AMD Radeon HD 6000 Series Graphics, Up to 4 CPU cores, FM1 Package Microsoft DirectX 11 & AMD Dual Graphics Technology Support 2 x PCIe 2.0 x16 slots with ATI CrossFireX support 12 x USB 2.0 ports 6 x SATA 3Gb/s connectors, (RAID 0, 1, 10 and JBOD UEFI BIOS - BIOS control via a Graphical Interface with mouse controlled support featuring unparalleled control options, 2.2TB or higher native HD support, and Quick Boot features 100% Solid Capacitor - High-quality conductive polymer capacitors for durability, improved lifespan and enhanced thermal capacity AMD Dual Graphics Technology - Proven performance boost with Improved 3D & Compute Performance unique to the AMD Lynx platform