Shuttle SX58H7-PRO PC Barebone System Processor: Socket 1366 Support Intel Quad/Hexa-core Core i7-900 Series & Core i7 Processor, Integrated Cooling Engine (I.C.E.) with efficient heat-pipe technology Chipset: Intel X58 + ICH10R Memory: 4x 240pin DDR3-1600(OC)/1333/1066 DIMMs, Triple Channel, Max Capacity upto 16GB Slots: 2x PCI-Express 2.0 x16 Slot (support ATI Crossfire & Nvidia SLI technology), 1x Mini-PCI-Express x1 Slot SATA: 2x SATA2 Ports, 2x SATA3 Ports, 2x eSATA2 Port, Support Raid 0/1/5/10/JBOD Audio: Realtek ALC888 7.1 channel High Definition Audio CODEC Ports: 11x USB 2.0 Ports (8 rear, 1x USB/ eSATA Combo front, 2 on-board), 2x USB 3.0 Ports (front), 2x eSATA Port (1 rear, 1 front), 2x RJ45 LAN Ports, Audio I/O Jacks Drive bays: External: 1x 5.25 Inches, 1x 3.5 Inches, Internal: 1x 3.5 Inches