Supermicro Mini ITX A1SRI-2558F-O Quad Core DDR3 1333 MHz Motherboard and CPU Combo CPU (Included): Intel Atom C2558 Processor; Supports up to 15W TDP (Quad-Core) Memory: 4x 204pin DDR3-1600/1333 SODIMM Slots, ECC, Max Capacity of 64GB Slots: 1x PCI-Express 2.0 x8 Slot SATA: 2x SATA3 Ports, 4x SATA2 Ports Form Factor: Mini-ITX Ports: 4x USB 3.0 Ports