CPU:
AMD® Socket AM3; Phenom™ II / Athlon™ II / Sempron™ 100 Series Processors.
AMD® 140w CPU support

Chipset:
AMD® 890GX / SB850

Memory:
4 x DIMM, Max. 16 GB, DDR3 1866(O.C.)/ 1333 / 1066 mhz ECC / non-ECC, un-buffered Memory
Dual channel memory architecture

Expansion Slots:
2 x PCIe 2.0 x16 slots, Supports ATI® Quad-GPU CrossFireX™ Technology (@ dual 8x speed)
1 x PCIe 2.0 x4 slot
1 x PCIe 2.0 x1 slot
2 x PCI slots

VGA output:
Integrated ATI® Radeon™ HD 4290 GPU

STORAGE:
AMD SB850 chipset
- 6 x SATA 6.0 Gb/s ports with raid 0, 1, 5 and 10 support

JMicron JMB361 PATA and SATA controller
- 1x eSATA 3.0 Gb/s port
- 1x Ultra DMA 133/100 for up to 2 PATA devices

LAN:
Realtek® 8111E PCIe Gigabit LAN controller featuring AI NET2

USB:
2x USB 3.0 ports (blue, at back panel)
12 USB 2.0 ports (8 ports at mid-board, 4 ports at back panel)

Overclocking Features:
Precision Tweaker 3
- vCore: Adjustable CPU voltage at 0.003125V increment
- vDDNB: Adjustable CPU NB voltage at 0.003125V increment
- vCPU PLL: Adjustable CPU PLL voltage at 0.00625V increment
- vHT Bus: Adjustable PCH voltage at 0.00625V increment
- vDRAM Bus: Adjustable DRAM voltage at 0.00625V increment
- vChipset: Adjustable chipset voltage at 0.00625V increment
SFS (Stepless Frequency Selection)
- PCI Express frequency tuning from 100MHz up to 150MHz at 1MHz increment
- Internal Base Clock tuning from 100MHz up to 600MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)

Back panel I/O Ports:
1 x PS/2 Keyboard (Purple)
1 x HDMI out port
1x DVI-D out port
1 x D-Sub out port
1 x Optical S/PDIF Output
1 x External SATA
1 x IEEE 1394a
1 x LAN(RJ45) port
2 x USB 3.0/2.0 ports (blue)
4 x USB 2.0/1.1
8 -Channel Audio I/O

Internal I/O Connectors:
4 x USB connectors support additional 6 USB ports
1 x IDE connector
6 x SATA 6.0 Gb/s connectors
System Panel(Q-Connector)
1 x Power on switch
1 x MemOK! button
1 x Turbo Key II switch
1 x Core Unlocker Switch

Support CD:
Drivers
ASUS Utilities
Anti-virus software (OEM version)
ASUS Update

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

As you can see it's a well specified piece of hardware. I particularly like the USB 3.0 and Sata III 6Gb/s support.

The onboard graphics including HDMI connectivity belie it's fairly reasonable price tag but as with any AMD motherboard you tend to get quite a lot for your money.