Bought this with plans to turn it into a mid-range gaming computer. A 1060 mini 6gb fits in the case easily. Upgraded the power supply to 450 just to be safe. This is fine with just those two upgrades but the HDD is really slow. After putting in an SSD and cloning the HDD to it to keep the free genuine windows, this computer isn't bad. You will be bottlenecked a little by the slower CPU but you can expect to play pretty much every game up to like 2016 on high settings with no issues. If you buy around Black Friday as I did then you can get a decent gaming computer for cheap. I think I spent $500 all together.Price of everything so if you're planning on repeating my actions you can get a feel for what it will cost you.This Dell Optiplex: $236.99 after shipping and taxes.Zotac 1060 mini 6gb Refurbished: $156.74 after shipping and taxes.EVGA 450 BT 80+: $32.01 after shipping and taxes.Samsung 860 EVO 500GB: $77.02 after shipping and taxes.Total: $502.76 after shipping, taxes, everything, in your house and playing.Overall I would say this is probably one of the cheapest ways of getting a decent gaming computer.I will update in the future if anything dies or other complications occur.Currently, I've had it for 2 months-ish with no issues.