This is a genuine Dell Motherboard for your Samll Form Factor Optiplex 790. We have done more than just test this motherboard. Here at Discount Electronics we go one step further and replace any components that have potential to fail in the near future. The result is that the Dell Motherboard you buy from DiscountElectronics.com is better than the motherboard you can get anywhere else. It may even last longer than the original. Our Motherboards are truly refurbished and comOure with a warranty.
There is a reason we have been on the Inc 5000 list of fastest growing companies 6 years in a row and voted Best Computer Store in Austin year after year. Service after the sale. We are just a phone call or email away should you need help.