For sale is one Intel DX58SO LGA1366 motherboard in 100% working condition, all functions tested in Windows 10. The BIOS has been updated to the most recent version 5600 from July 2013 to ensure proper CPU and memory compatibility. The I/O shield is NOT included. A Xeon X5660 6C12T processor and 6GB OCZ DDR3 1600 are included.Shipping will be via USPS Priority Mail. Feel free to ask any questions. This motherboard is guaranteed to fit your needs and is covered by a 30-day free return policy. If you aren't completely satisfied, please select the reason "doesn't fit" while opening the return, and you'll receive a free return shipping label. Please avoid selecting the "doesn't work or defective" reason, as this results in a penalty fee for the seller.