ASUS P7P55D-E PRO - Intel P55, s1156, DDR3, SATA3, GLAN, USB3.0, 1394, ATX

CPU: Intel® Socket 1156 Core™ i7 Processor/Core™ i5 Processor/Core™ i3 Processor Supports Intel® Turbo Boost Technology Chipset: Intel® P55 Express Chipset Memory: 4 x DIMM, Max. 16 GB, DDR3 2200(O.C.)*/1600/1333/1066 Non-ECC,Un-buffered Memory Dual Channel memory architecture Supports Intel® Extreme Memory Profile (XMP) *Hyper DIMM support is subject to the physical characteristics of individual CPUs. Some hyper DIMMs only support one DIMM per channel. Please refer to Memory QVL for details. **Refer to www.asus.com or this user manual for the Memory QVL(Qualified Vendors Lidts). Expansion Slots: 2 x PCIe 2.0 x16 (single at x16 or dual at x8 / x8 mode) 3 x PCIe 2.0 x1 (2 at 5GT/s [blue]; 1 at 2.5GT/s [gray]) 2 x PCI Multi-GPU Support Supports NVIDIA® Quad-GPU SLI™ Technology Supports ATI® Quad-GPU CrossFireX™ Technology Storage: Intel® P55 Express Chipset built-in 6 xSATA 3.0 Gb/s ports Intel Matrix Storage Technology Support RAID 0,1,5,10 JMicron® JMB363 PATA and SATA controller 1 xUltraDMA 133/100/66 for up to 2 PATA devices 1 xExternal SATA 3Gb/s port 1 xSATA 3Gb/s port (black) Marvell® PCIe SATA6Gb/s controller: - 2 x SATA 6.0 Gb/s ports (Gray) LAN: Realtek® 8112L Gigabit LAN controller featuring AI NET2 Audio: VIA® VT1828S 8-Channel High Definition Audio CODEC IEEE 1394: VIA® 6308P controller supports 2 x 1394a port(s) (one at mid-board; one at back panel) USB: NEC USB 3.0 controller - 2 x USB 3.0 ports (Blue, at back panel) Intel® P55 Express Chipset - 12 x USB 2.0 ports (6 ports at mid-board, 6 ports at back panel) Back Panel I/O Ports: 1 x PS/2 Keyboard (Purple) 1 x PS/2 mouse port (Green) 1 x Coaxial S/PDIF Output 1 x Optical S/PDIF Output 1 x IEEE1394a 1 x eSATA port 1 x RJ45 port 2 x USB 3.0/2.0 ports (blue) 6 x USB 2.0/1.1 ports 8-channel Audio I/O Internal I/O Connectors: 3 x USB connectors support additional 6 USB ports 1 x IDE connector 1 x IEEE 1394a connector 1 x CPU Fan connector 1 x Power Fan connector 7 x SATA 3.0Gb/s connectors (blue/black) 2 x SATA 6.0Gb/s connectors (gray) 2 x Chassis Fan connector (1x4-pin, 1x3-pin) Form Factor ATX Form Factor 12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )