I am a retired computer business owner and have eight Dell OptiPlex 7020 small form factor desktop computers for sale. Each one has been professionally inspected and certified. Any issues have been corrected a clean, legitimate copy of windows 10 professional and Office 2013 professional have been installed. You can see the specifications in the last picture. These are excellent computers and and I back them with a 30 day hardware warranty. If anything breaks I’ll fix it. There are many different monitor and stand configurations to choose from. The dual monitor stand pictured is available on a first come first served basis.