Gigabyte Intel Z77 LGA 1155 AMD CrossFireX/NVIDIA SLI Dual LAN Dual UEFI BIOS ATX Motherboard GA-Z77X-UD5H CPU: Support for Intel Core i7/i5/i3/Pentium/Celeron processors in the LGA1155 package. Chipset: Intel Z77 Express Chipset Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory. Dual channel memory architecture. Support for DDR3 1600/1333/1066 MHz memory modules. Support for non-ECC memory modules. Support for Extreme Memory Profile (XMP) memory modules Audio: Realtek ALC898 codec. Support for X-Fi Xtreme Fidelity and EAX Advanced HD 5.0 technologies. LAN: 1 x Atheros GbE LAN chip (10/100/1000 Mbit) (LAN1). 1 x Intel GbE LAN chip (10/100/1000 Mbit) (LAN2). Support for AMD CrossFireX/ NVIDIA SLI technology. Expension Slots: 1 x PCI Express x16 slot, running at x16. 1 x PCI Express x16 slot, running at x8. 1 x PCI Express x16 slot, running at x4. 3 x PCI Express x1 slots. 1 x PCI slot. Storage Interface: 2 x SATA 6Gb/s connectors. 4 x SATA 3Gb/s connectors. 1 x mSATA connector. Support for RAID 0/1/5/10. 2 x Marvell 88SE9172 chips: 3 x SATA 6Gb/s connectors. 1 x eSATA 6Gb/s connector. USB: Up to 2 USB 3.0/2.0 ports. Up to 6 USB 2.0/1.1 ports. Chipset + 2 VIA VL810 Hubs: Up to 8 USB 3.0/2.0 ports. Up to 2 IEEE 1394a ports. Internal I/O Connectors: 1 x 24-pin ATX main power connector; 1 x 8-pin ATX 12V power connector; 1 x PCIe power connector; 5 x SATA 6Gb/s connectors; 4 x SATA 3Gb/s connectors; 1 x mSATA connector; 1 x CPU fan header; 4 x system fan headers; 1 x front panel header; 1 x front panel audio header; 1 x S/PDIF Out header; 3 x USB 3.0/2.0 headers; 2 x USB 2.0/1.1 headers; 1 x Clear CMOS jumper; 1 x Trusted Platform Module (TPM) header; 1 x power button; 1 x reset button; 1 x Clear CMOS button; 1 x heatsink LED power connector; 1 x BIOS Switch; Voltage Measurement Points Back Panel Connectors: 1 x D-Sub port/1 x DVI-D port/1 x optical S/PDIF Out connector/1 x HDMI port/1 x DisplayPort/1 x eSATA 6Gb/s connector/4 x USB 3.0/2.0 ports/2 x USB 2.0/1.0 ports/1 x IEEE 1394a port/2 x RJ-45 ports/6 x audio jacks