specifications:
CPU Intel® Socket 775 Core™2 Quad/Core™2 Extreme/Core™2 Duo/Pentium® D/Celeron® dual-core/Celeron Processors Compatible with Intel® 05B/05A/06 processors
Support Intel® 45nm Multi-Core CPU
Chipset Intel® P43 / ICH10 with Intel® Fast Memory Access Technology
Front Side Bus 1600(O.C)/1333/1066/800 MHz
Memory  2 x DIMM, Max. 8 GB, DDR2 1066/800/667 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
Expansion Slots  1 x PCIe x16 
2 x PCIe x1 
3 x PCI
Storage Southbridge 
4 xSATA 3 Gb/s ports 
JMicron® JMB368 PATA controller 
1 xUltraDMA 133/100/66 for up to 2 PATA devices
LAN RTL8111C,PCIe GB LAN
Audio ALC662 6 -Channel High-Definition Audio CODEC 
- Support Jack Detection and Multi-streaming 
- Onbord SPDIF header 
- Noise-Filtering
USB  12 USB 2.0 ports (6 ports at mid-board, 6ports at back panel)
ASUS Unique Features ASUS EZ DIY
- ASUS O.C. Profile
- ASUS CrashFree BIOS 3 
- ASUS EZ Flash 2 
- ASUS MyLogo 2
Back Panel I/O Ports  1 x Parallel 
1 x PS/2 Keyboard 
1 x LAN(RJ45) port 
6 x USB 2.0/1.1 
1 x COM port 
6 -Channel Audio I/O
Internal I/O Connectors  3 x USB connectors additional 6 USB ports 
1 x Floppy disk drive connector 
1 x IDE connector 
4 x SATA connectors 
1 x CPU Fan connector 
1 x S/PDIF Out connector 
1 x 4-pin ATX 12V Power connector 
24-pin ATX Power connector 
Front panel audio connector
Chassis Intrusion connector
CD/AUX audio in
System Panel
BIOS 8 Mb Flash ROM 
DMI 2.0
AMI BIOS 
PnP
WfM 2.0 
SM BIOS 2.5 
ACPI 2.0a 
ASUS EZ Flash 2 
ASUS CrashFree BIOS 3
Manageability WfM 2.0,DMI 2.0,WOL by PME,WOR by PME,PXE
Accessories 1 SATA power cable 
UltraDMA 133/100/66 cable 
1 x Serial ATA cable kit (SATA & Power) 
I/O Shield 
User's manual
Support Disc Drivers
ASUS PC Probe II 
Anti-virus software (OEM version)
Form Factor ATX Form Factor 
12 inch x 7.6 inch ( 30.5 cm x 19.3 cm )