Asus M4A78-EM Ports
PS/2 Hybrid Port: Connection supporting either a PS/2 mouse or PS/2 keyboard.
Optical S/PDIF Out: Digital audio output port compatible with optical S/PDIF cables / devices (also called TOSLINK).
VGA Out Port: Video Graphics Adapter (VGA) port for outputting analog video.
USB 2.0 Port(s): Universal Serial Bus (USB) port for connecting USB 2.0 and older devices (480 Mb/s).
Gigabit LAN Port (RJ-45): RJ-45 plug for connecting to a wired Local Area Network (LAN) via Ethernet at up to 1000 Mbps.
Center / Subwoofer Audio Jack: 3.5mm analog audio jack for output to center speaker and subwoofer (if using surround sound).
Rear Speakers: 3.5mm analog audio jack for output to rear speakers (if using surround sound).
Line In Audio Jack: 3.5mm analog audio jack for line-level input to the computer.
Front Speakers: 3.5mm analog audio jack for output to speakers (front, if using surround sound) or headphones.
Microphone Audio Jack: 3.5mm analog audio jack for microphone input to the computer.
Side Speakers: 3.5mm analog audio jack for output to side speakers (if using surround sound).
USB 2.0 Port(s): Universal Serial Bus (USB) port for connecting USB 2.0 and older devices (480 Mb/s).
External SATA Port: External SATA (eSATA) port for connecting to drives directly via SATA rather than USB or Firewire.
DVI (Single Link): Digital Video Interface (DVI) port for outputting digital video. Supports up to 1920x1200.
HDMI Out Port: High Definition Multimedia Interface (HDMI) port for outputting digital video and audio.
USB 2.0 Port(s): Universal Serial Bus (USB) port for connecting USB 2.0 and older devices (480 Mb/s).
Asus M4A78-EM Schematic
Model: Asus M4A78-EM
Specifications
| Socket | AM2+ |
| CPU Compatibility | Phenom, Phenom II |
| Form Factor | MicroATX |
| Chipset Manufacturer | AMD |
| Chipset | 780G/SB700 |
| Front Side Bus | HyperTransport |
| Network Connectivity | Gigabit Networking |
| Cooling System | Heatsink |
Memory Support | |
| Type | DDR2 |
| Maximum Speed | 1066 MHz |
| Number of Slots | 4 |
| Maximum Size per Slot | 4 GB |
| Maximum Amount Supported | 16 GB |
Onboard Video | |
| Chipset Manufacturer | ATI |
| Processor Type | Radeon HD3200 |
| Maximum Shared Memory | 256 MB |
| DVI | 1 |
| VGA | 1 |
| HDMI | 1 |
External Connections | |
| USB 2.0 | 6 |
| PS/2 Keyboard | Yes |
| Audio Out | Surround Sound (7.1) |
| Audio In | Line-In/Microphone |
| S/PDIF | Optical |
| External SATA | 1 |
| LAN (RJ45) | 1 |
Internal Connections | |
| USB 2.0 | 3 (providing 6 ports) |
| IDE | 2 Devices |
Expansion Slots | |
| Slot 1 | Slot not available on this board |
| Slot 2 | Slot not available on this board |
| Slot 3 | Slot not available on this board |
| Slot 4 | PCI |
| Slot 5 | PCI |
| Slot 6 | PCI Express x16 |
| Slot 7 | PCI Express x1 |
Additional Information | |
| SLI Compatible | No |
| Crossfire Compatible | No |
Dimensions | |
| Height | 244 mm (9.6 in) |
| Width | 244 mm (9.6 in) |
Internal Connections
SATA2: 5
