Asus M3A78 AM2 DDR2 Motherboard. This motherboard supports AMD AMD® Socket AM2+ 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. 
   


* Please Note: This is an OEM motherboard and it does not come with rear I/O shield also known as back-plate cover. This part is not needed and you can still install the board in standard ATX case.

Specifications:

CPU
AMD Socket AM2+ / AM2 Processors
AMD Phenom™ FX / Phenom / Athlon™ / Sempron™
Support up to 140W CPU
AMD Live!™ Ready
AMD Cool 'n' Quiet™ Technology
Support 45nm Phenom™ II CPU                  

Chipset
AMD 770/SB700   

Front Side Bus
Up to 5200 MT/s HyperTransport™ 3.0 interface for AM2+ CPU
2000 / 1600 MT/s for AM2 CPU             

Memory
4 x DIMM, Max. 8 GB, DDR2 1066/800/667/533 ECC,Non-ECC Memory
Dual Channel memory architecture

Expansion Slots
1 x PCIe x16
2 x PCIe x1
3 x PCI 2.2
Support PCIe 2.0 / 1.0 Architecture

Storage
Southbridge
1 x UltraDMA 133/100
6 x SATA 3 Gb/s ports Support RAID 0,1,0+1,JBOD
 
LAN
Gigabit LAN

Audio
VT1708B 8 -Channel High Definition Audio CODEC
Supports S/PDIF out interface,Multi-streaming teconologies and and Jack-detect
S/PDIF out port at back I/O     

USB Ports
12 USB 2.0 ports (6 ports at mid-board,6 ports at back panel)      

Back Panel I/O Ports
1 x PS/2 Keyboard
1 x S/PDIF Out (Optical)
1 x LPT
1 x COM
1 x RJ45 port
6 x USB 2.0/1.1
8-Channel Audio I/O     

Internal I/O Connectors
3 x USB connector (6ports)
1 x CPU Fan connector
1 x Chassis Fan connector
1 x Power Fan connector
Front panel audio connector
1 x S/PDIF Out Header
Chassis Intrusion connector
CD audio in
24-pin ATX Power connector
4-pin ATX 12V Power connector
System Panel connector   

BIOS
8Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a  

Form Factor
ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )