uATX, Intel® G31 Express Chipset featuring Intel® Graphics Media Accelerator 3100, supporting supporting Intel® Core™2 Quad, Intel® Core(TM)2 Duo Processor, Intel® Pentium® Dual-Core Processor,   Intel® Celeron® 400 Series  in the LGA775 socket, 1333/1066/800MHz System Bus, DDR2 800/667 SDRAM Memory, Intel® PRO 10/100/1000 Network Connection, PCI Express* x16, 2x PCI connectors, 1x PCI Express* x1 connector, up to 8 Hi-Speed USB 2.0 ports, Intel® High Definition Audio enabling 7.1 Surround Sound, 4xSATA ports (3.0 Gb/s) 

ATX, Intel® G33 Express Chipset featuring Intel® Graphics Media Accelerator 3100, supporting Intel® Core™2 Quad, Intel® Core(TM)2 Duo Processor, Intel® Pentium® Dual-Core Processor,   Intel® Celeron® 400 Series  in the LGA775 socket, 1333/1066/800MHz System Bus, DDR2 800/667 SDRAM Memory, Intel® PRO 10/100/1000 Network Connection, 1xPCI Express* x16, 3x PCI connectors, 3x PCI Express* x1 connector, up to 12 Hi-Speed USB 2.0 ports, IEEE-1394a port , Intel® High Definition Audio enabling 7.1 Surround Sound, 4xSATA ports (3.0 Gb/s)