The P5N-D is a NVIDIA® 750i SLI chipset-based motherboard that combines powerful performance with great energy efficiency; and supports NVIDIA® SLI technology with PCI Express 2.0 for extreme graphics performance. It also comes with the worlds first ASUS EPU (Energy Processing Unit), allowing the CPU power supply to be digitally monitored and fine-tuned with improved VRM efficiency in heavy or light loadings – attaining the best possible power efficiency and energy savings to help save the environment.

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Chipset	NVIDIA nForce 750i SLI
CPU Interface	Socket 775
Front Side Bus	1333MHz
RAM Technology	Dual-channel DDR2
RAM Slots	4 x 240-pin
RAM Speeds	800/667Mhz
Max. Memory Support	8GB
Expansion Slots	2 x PCI Express x16 slot 1 x PCI Express x1 slot 2 x PCI slots
Storage Controller(s)	2 x P-ATA133 4 x S-ATA300
On-Board LAN	NVIDIA nForce 750i SLI built-in Gigabit MAC with external PHY
On-Board Audio	Realtek ALC883 8-Channel audio CODEC
On-Board Video	None
Back Panel I/O Ports	1 x PS/2 keyboard & PS/2 mouse connectors 4 x USB ports 1 x RJ45 LAN connector 1 x Parallel port (LPT1) 1 x Serial port (COM1) 1 x Audio port (Line-in, Line-out, Mic-in) 1 x Coaxial S/PDIF output 1 x External SATA 1 x IEEE1394
Features	NVIDIA 750i SLI chipset ASUS EPU (Energy Processing Unit) ASUS Precision Tweaker 2 Support PCIe2.0 Dual x16 SLI ASUS Q-Shield