Bought 3 of these desktops. They're clearly off-lease or life-cycled out Dell desktops that the seller purchased and resold.They seem to run fine, since it's mostly for web browsing and cloud based apps.However, after 7 months of use, one of the computer's wouldn't boot. Turns out the SSD catastrophically failed.When we opened up the case, we found KingFast F10 256gb SSDs in them, so my guess is that these off-lease/used Dell Optiplex desktops originally came with a name brand SSD, but the previous owner kept or destroyed the drives and data. So this seller refurbished them with cheap Kingfast drives.Usually Dell Optiplexes have good hardware, except in this case the SSDs are a failure point because they've been replaced from OEM to a cheap Kingfast SSD.So basically, if you buy them, you're taking a risk on the SSDs. the other components *seem* to be OEM.Let's hope the other systems last longer