GIGABYTE GA-Z68XP-UD4 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard CPU:Intel Core i7. i5. i3 processors,Intel Pentium processors,Intel Celeron processors in the LGA1155 package. Memory: 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory. Dual channel memory architecture. Support for DDR3 2133. 1866. 1600. 1333. 1066 MHz memory modules Expansion Slots: 1 x PCI Express x16 slot, running at x16. 1 x PCI Express x16 slot, running at x8. 2 x PCI Express x1 slots. Expansion Slots: 2 x PCI slots. Support for AMD CrossFireX. NVIDIA SLI technology Audio : Support for S. PDIF Out. LAN: 1 x Realtek RTL8111E chip (10. 100. 1000 Mbit) Audio: Realtek ALC889 codec. High Definition Audio. 2. 4. 5.1. 7.1-channel. Support for Dolby Home Theater. Audio: Realtek ALC889 codec. High Definition Audio. 2. 4. 5.1. 7.1-channel. Support for Dolby Home Theater. Back Panel Connectors:1 x IEEE 1394 port. 1 x eSATA. USB Combo connector. 1 x eSATA 6Gb. s connector. 2 x USB 3.0. 2.0 ports. 1 x HDMI port Back Panel Connectors:1 x RJ-45 port.6 x audio jacks(Center. Subwoofer Speaker Out. Rear Speaker Out. Side Speaker Out. Line In. Line Out. Microphone) Back Panel Connectors:7 x USB 2.0. 1.1 ports. 1 x PS. 2 keyboard. mouse port. 1 x coaxial S. PDIF Out connector. 1 x optical S. PDIF Out connector CPU: Intel Core i7. i5. i3 processors, Intel Pentium processors, Intel Celeron processors in the LGA1155 package . Chipset: Intel Z68 Express Chipset Expansion Slots: 1 x PCI Express x16 slot, running at x16. 1 x PCI Express x16 slot, running at x8. 2 x PCI Express x1 slots. Internal I. O Connectors: 1 x front panel audio header. 1 x S. PDIF Out header. 3 x USB 2.0. 1.1 headers. 1 x USB 3.0. 2.0 header. Internal I. O Connectors: 1 x serial port header. 1 x IEEE 1394a header. 1 x Trusted Platform Module (TPM) header. 1 x clearing CMOS jumper Internal I. O Connectors: 4 x SATA 3Gb. s connectors. 1 x CPU fan header. 2 x system fan headers. 1 x power fan header. 1 x front panel header. Internal I. O Connectors:1 x 24-pin ATX main power connector. 1 x 8-pin ATX 12V power connector. 4 x SATA 6Gb. s connectors. Chipset:Intel Z68 Express Chipset 2 x PCI slots. Support for AMD CrossFireX. NVIDIA SLI technology Support for S. PDIF Out. LAN: 1 x Realtek RTL8111E chip (10. 100. 1000 Mbit)