ASUS 
 
 
 
 M4A78-E
- 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 45nm CPU 
AMD 140W CPU Support 
- System bus 
 Up to 5200 MT/s HyperTransport™ 3.0 interface for AM3/AM2+ CPU 
2000 / 1600 MT/s for AM2 CPU 
- Chipset
 AMD 790GX/SB750
- Memory
  4 x DIMM, Max. 16 GB, DDR2 1200(O.C.)/1066/800/667 ECC,Non-ECC,Un-buffered Memory
	 Dual Channel memory architecture
- VGA
 Integrated ATI Radeon™ HD 3300 GPU.
 Max. shared memory: 512 MB
 SidePort Memory - onboard 64MB DDR2 800 memory
 Supports HDMI™ Technology with max. resolution up to 1920 x 1200 (1080P)
 Supports Dual-link DVI with max. resolution up to 2560x1600 @60Hz
 Supports D-Sub with max. resolution up to 2560x1440 @ 75Hz
 Hybrid CrossFireX™ Support
 Dual independent displays support with HDMI/DVI and D-Sub
 Supports Microsoft® DirectX 10, OpenGL 2.0, Shader Model 4.0
 Hardware Decode Acceleration for H.264,VC-1, and MPEG-2 
- Expansion Slots
 2 x PCIe 2.0 x16 (Single x16 with VGA Switch Card or Dual x8)*. Support ATI CrossFireX™ technology
 2 x PCIe x1
 2 x PCI 2.2 
- Connectors
 3 x USB connectors (6 ports)
 1 x Floppy disk drive connector
 1 x IDE connector
 5 x SATA connectors
 1 x IEEE 1394a connector
 1 x CPU Fan connector
 2 x Chassis Fan connector
 1 x Power Fan connector
 1 x S/PDIF Out connector
 CD audio in
 Front panel audio connector
 COM connector
 Chassis Intrusion connector
 System Panel (Q-Connector)
 24-pin ATX Power connector
 4-pin ATX 12V Power connector 
- Audio
 VIA VT1708S 8 -Channel High Definition Audio CODEC
 - Supports Jack-Detection, Multi-Streaming, and Front Panel Jack-Retasking
 - Optical S/PDIF Out ports at back I/O
 - ASUS Noise Filtering 
- LAN
 Atheros L1E Gigabit LAN controller featuring AI NET 2
- Rear Panel I/O Ports
 1 x DVI
 1 x D-Sub
 1 x HDMI
 1 x External SATA
 1 x S/PDIF Out (Optical)
 1 x IEEE 1394a
 1 x LAN(RJ45) port
 6 x USB 2.0/1.1
 8 -Channel Audio I/O
 1 x PS/2 Keyboard (Purple) 
- BIOS
 8 Mb Flash ROM 
AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ACPI 2.0a, ASUS EZ Flash 2 
- Form Factor
  ATX
- Dimensions
 30.5 cm x 24.5 cm
- Package
Box