The P5K3/P5K series of motherboards provide four outstanding features for the user. The Deluxe version of the motherboard has built-in native DDR2 1066 support and is able to overclock with an ultra high frequency to achieve DDR2 1400. These ASUS motherboards still provide you with quiet thermal solutions - which contain the 8 phase power design, Stack Cool 2 functions. They also come with the newest AI Gear 2 to save up to 50% of CPU power usage. Complementing all these features are ASUS´s innovative tools - AI Slot Detector; allowing the user to conveniently install the computer. The P5K3/P5K series decreases temperature, provides stable overclocking, lowers noise levels and saves the most electricity.

CPU: LGA775 socket for Intel®  Coreâ„¢2 Quad / Coreâ„¢2 Extreme / Coreâ„¢2 Duo / Pentium® Extreme / Pentium® D / Pentium® 4 Processors
Chipset: Intel® P35 / ICH9 with Intel® Fast Memory Access Technology  
Form Factor: ATX
FSB: 1333 / 1066 / 800 MHz 
Memory: 4 x DIMM, max. 8GB, DDR2 1066*/800 / 667 MHz, non-ECC, un-buffered memory.  Dual channel memory architecture.  * The chipset officially supports the memory frequency up to DDR2 800MHz. Tuned by ASUS Super Memspeed Technology, this motherboard natively supports up to DDR2 1066MHz
Please refer to www.asus.com or user manual for Memory QVL
Slots: 2 x PCI-E x16 (blue @ x16 mode, black @ x4 or x1 mode) supports CrossFire Technology.  2 x PCI-E x1.  3 x PCI 
LAN: Gigabit LAN controllers, featuring AI NET2.  Marvell88E8056® PCI-E Gigabit LAN controllers
Audio: ADI® AD1988B 8-channel High Definition Audio CODEC  
Storage: Southbridge
 - 6 x SATA 3.0 Gb/s ports
 - Supports RAID 0 and 1
JMicron® JMB363 PATA and SATA controller
 - 1 x UltraDMA 133/100/66 for up to 2 PATA devices
 - 2 x External SATA 3.0 Gb/s port (SATA On-the-Go)
- Supports SATA RAID 0,1 and JBOD
IEEE 1394: Agere® FW322 1394a controller supports 2 x IEEE 1394a ports (one at midboard; one at back panel)
USB: 10 x USB 2.0 ports (4 ports at mid-board, 6ports at back panel)
Warranty: 3yrs
Weight: 2.0kg