This motherboard supports AMD® AM3 multi-core processors with unique L3 cache and delivers better overclocking capabilities with less power consumption. It features dual-channel DDR2 1066 memory support and accelerates data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus. This motherboard also supports AMD® CPUs in the new 45nm manufacturing process.

This motherboard supports AMD® Socket AM2+ multi-core processors. It features dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s via HyperTransport™ 3.0 based system bus, and AMD® Cool ´n´ QuietTM Technology.

Specifications

CPU	AMD Socket AM2+ / AM2 Phenom™ X4/Phenom™ X3/Athlon™ /Athlon™ X2/Sempron™ Processors Support AM3 Phenom™ II / Athlon™ X4 / Athlon™ X3 / Athlon™ X2 Processors AMD Cool 'n' Quiet™ Technology Support CPU up to 125W
Chipset	NVIDIA nForce 720D
System Bus	Up to 5200 MT/s ; HyperTransport™ 3.0 interface for AM2+/AM3 CPU 2000 / 1600 MT/s for AM2 CPU
Memory	4 x DIMM, Max. 16 GB, DDR2 1200(O.C.)/1066*/800/667 ECC,Non-ECC,Un-buffered Memory Dual Channel memory architecture *Due to AMD CPU limitation, DDR2 1066 is supported by AM3 / AM2+ CPU for one DIMM per channel only. *Refer to www.asus.com for the memory QVL (Qualified Vendors List)
Expansion Slots	1 x PCIe x16 2 x PCIe x1 3 x PCI
Storage	Chipset 1 xUltraDMA 133/100/66/33 5 xSATA 3 Gb/s ports NVIDIA® MediaShield™ RAID Support RAID 0,1,0+1,5,JBOD （in windows@ vista only） *Due to the Windows XP/ Vista limitation, the RAID array with the total capacity over 2TB cannot be set as a boot disk. A RAID array over 2TB can only be set as a data disk only. For more information, please refer to http://support.microsoft.com/kb/946557/en-us
LAN	Realtek 8211CL PHY Gigabit LAN
Audio	ALC 887 8 -Channel High Definition Audio CODEC - Optical S/PDIF out port at back I/O - Support Jack Detection and Multi-streaming
USB	12 USB 2.0 ports (6 ports at mid-board, 6 ports at back panel)
ASUS Unique Features	- ASUS EPU- 4 Engine - ASUS Express Gate: - ASUS Q-Fan - ASUS CrashFree BIOS 3 - ASUS MyLogo 2 - ASUS EZ Flash 2
Overclocking Features	SFS (Stepless Frequency Selection) - FSB tuning from 200MHz up to 550MHz at 1MHz increment Overclocking Protection - ASUS C.P.R.(CPU Parameter Recall)
Special Features	AI NET 2 AI NAP Turbo key
Back Panel I/O Ports	1 x Parallel 1 x External SATA 1 x S/PDIF Out 1 x LAN(RJ45) port 6 x USB 2.0/1.1 1 x COM port 8 -Channel Audio I/O 1 x PS/2 Keyboard/Mouse port
Internal I/O Connectors	3 x USB connectors (6 ports) 5 x SATA connectors 1 x CPU Fan connector 1 x Chassis Fan connector 1 x Power Fan connector 1 x Front panel audio connector 1 x S/PDIF Out connector 1 x CD audio in connector 1 x system panel connector 1 x 24-pin ATX Power connector 1 x 4-pin ATX +12V Power connector
BIOS	8 Mb Flash ROM AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a
Accessories	1 x UltraDMA 133/100 cable 1 x SATA cable 1x I/O shield User's manual
Support Disc	Drivers ASUS PC Probe II Anti-virus software (OEM version) Express Gate Driver ASUS Update
Form Factor	ATX Form Factor 12 inch x 8.2 inch ( 30.5 cm x 20.8 cm )