Specification Mfr Part Number: GA-K8NS ULTRA-939 CPU: Socket939 For AMD Athlon64/Athlon 64FX FSB: 2000 Chipset: NVIDIA nForce3 Ultra Memory: 4 x 184-pin DDR400/333/266 DIMM Up To 4GB(Dual Channel) Slots: 5 x PCI, 1 x AGP(4x/8x) IDE: 2 x Ultra DMA 66/100/133; 4 x Serial ATA Audio: Realtek ALC850(8 Channel) AC'97 Codec On Board LAN: Marvell 8001 Gigabit Ethernet LAN Controller & 10/100 Ethernet LAN Rear I/O: 2 x COM, 2 x RJ45, 1 x LPT, 4 x USB2.0, PS/2 Keyboard/Mouse, Audio 8 x USB 2.0; 2 x IEEE1394b(Texas Instruments) Form Factor: ATX Availability: Usually ships in 2-3 business days. ULTRA-939 Regular price: $119.00Sale price: $119.00 Pretest - Standard Prestest (Avoids Costly RMAs): (+$9.89)No Thanks Pretest - Perform Complete Pretest (Includes: Hardware-Software Diagnostics, Burn-In and Updates) Software Diagnostics, Burn-In and Updates): (+$19.89) No Thanks Latest Revision of Motherboard, with Updated Bios On Retail Box Motherboard & 1 yr Extended Warranty: (+$24.98) No Thanks Software Promotion: Windows XP Home Edition(+$99.95)Windows XP Pro(+$154.95)WINDOWS 2000 PRO(+$151.95)No Thanks for Offer Warranty Upgrade: 60 Days Motherboard/Processor(+$9.49)1 Year Motherboard/Processor(+$14.25)2 Year Motherboard/Processor(+$19.98)No Thanks 30 Days Is Fine Expedite Shipping:: Ship in next 24 working hours (+$4.99)No