Feature	Specification
Chipset	Intel® 945G chipset with ICH7R
Processor Support	Intel Pentium® 4 processor LGA775 socket 1066, 800, or 533 MHz system bus
Memory	Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets DDR2 667, DDR2 533, or DDR2 400 MHz DIMMs Expandable up to 4 GB total memory
Video	Intel GMA950 onboard graphics subsystem - Or one of the following video add-in cards - NVIDIA 6600G PCI-E video card with 128 MB memory NVIDIA GeForce 6200 with Turbo Cache supporting 128 MB NVIDIA GeForce 6800 Ultra with 256 MB DDR3 Dual DVI and TV-Out
Audio	Intel High Definition Audio subsystem consisting of: 8-channel (7.1) audio subsystem with five analog audio outputs and one S/PDIF optical digital audio output using the Sigmatel 9223 audio codec
Hard Drive Support	Up to four Serial ATA (SATA) hard drives
Add-in Card Slots	One ×16 PCI Express One ×1 PCI Express Three PCI
Front I/O Ports	Two IEEE 1394 ports Two audio jacks
Rear I/O Ports	Five audio jacks Side surround left and right / line in / retasking jack (blue) Line out / retasking jack (green) Microphone in / retasking jack (pink) Surround left and right / retasking jack (black) Center channel and LFE (subwoofer) / retasking jack (orange) S/PDIF digital audio out (square black with gray) PS/2 keyboard port PS/2 mouse port Four USB 2.0 ports One IEEE-1394a port One serial port One parallel port One VGA monitor port (covered and not used if an add-in video card is installed)
LAN Support	Broadcom 5752 GbE PCIe controller with integrated Trusted Platform Module (TPM) 1.2
Case Form Factor	BTX - channels air more efficiently, dissipates heat faster, and runs quieter than ATX-based cases.
Dimensions (W × D × H)	8.00 × 17.50 × 16.80 inches
External Drive Bays	Two 5.25-inch Two 3.5-inch
Internal Drive Bays	Three 3.5-inch hard drive bays