Msi H55M-P31 CPU • Supports Intel® i3 / i5 / i7 based processors in LGA1156 package. Chipset • Intel® H55 Chipset - Supports QPI up to 6.4GT/s- Hi-Speed USB (USB2.0) controller, 480Mb/sec. - 6 SATAII ports with transfer rate up to 3Gb/s. - PCI Master v2.3, I/O APIC. - ACPI 2.0 compliant. Main Memory • Supports four unbuffered DIMM of 1.5 Volt DDR3 1066/1333/1600*/2000*/2133* (OC) SDRAM, 16GB Max - Supports 1Gb/ 2Gb/ 4Gb DRAM size - Supports Dual channel mode Slots • 1 PCI Express gen2 x16 slot • 1 PCI Express gen2 x1 slots (turkeyarena.com) • 1 PCI slots, support 3.3V/ 5V PCI bus Interface On-Board IDE/SATA • One Ultra DMA 66/100/133 IDE controller integrated in JMicron® 368. - Supports PIO, Bus Master operation modes. - Can connect up to two Ultra ATA drives. • SATAII controller integrated in Intel H55 chipset - Up to 3Gb/s transfer speed. - Supports six SATAII ports by H55 Audio • Chipset integrated by Realtek® ALC889 - Flexible 8-channel audio with jack sensing - Compliant with Azalia 1.0 Spec - Meet Microsoft Vista Premium spec LAN • Supports one PCI Express LAN 10/100/1000 Fast Ethernet by Realtek 8111DL.