Supermicro A1SRM-2558F-O Micro ATX Intel Atom C2558 Processor DDR3 1333 MHz Motherboard and CPU Combo CPU (Included): Intel Atom C2558 Processor; Supports up to 15W TDP (Quad-Core) Memory: 4x 240pin DDR3-1600/1333 SODIMM Slots, ECC/Non-ECC, Max Capacity of 64GB Slots: 1x PCI-Express 2.0 x8 Slot, 1x PCI-Express 2.0 x4 Slot SATA: 2x SATA3 Ports, 4x SATA2 Ports Form Factor: MicroATX Ports: 7x USB 2.0 Ports