CPU LGA775 socket for Intel Core 2 Duo / PentiumDual-core (E21xx series)/CeleronDual-core/ Celeron 400 series processors LGA775 socket for latest Intel 45nm Multi-Core processors FSB 1333/1066/800 MHz Chipset Intel G31 & ICH7 VGA Integrated Intel Graphics Media Accelerator 3100 (GMA3100) Memory Dual-channel DDR2 memory architecture 2 x 240-pin DDR2 DIMM socket support up to 4 GB Support Dual-DDR2 800/667 MHz Memory Expansion Slots 1 x PCI Express x 16 slots 1 x PCI Express x 1 slot 1 x PCI slot LAN Atheros AR8112 10/100 LAN Audio VIA VT1708B 6-channel High Definition audio IDE 1 x Ultra DMA 100/66 Back Panel I/O Ports 1 x PS/2 keyboard 1 x PS/2 mouse 1 x VGA port 1 x RJ 45 Port 4 x USB 2.0 Ports 1 x Audio I/O (Line-in, Line-out and Mic-in) Internal I/O Connectors & Headers 24-pin ATX Power Supply connector 4-pin ATX 12V power supply connector 1 x USB header support additional 2 USB2.0 ports 2 x Serial ATA connectors 1 x IDE connector 1 x CLR CMOS header 1 x Front panel switch/LED header 1 x Front panel audio header 1 x CPU FAN header 1 x Speaker header 1 x COM header 1 x LPT header System BIOS AMI 4Mb SPI ROM Supports Plug and Play 1.0A, APM 1.2, Multi Boot, DMI Full support for ACPI revision 1.0 specification Form Factor Micro ATX Form Factor, 225x170mm