The computer (Dell Optiplex 9020) arrived cleaned of dust (it was blown with compressed air), there is a little dust on the coolers, but it is not terrible. To my surprise, I received a Patriot SSD 1TB that was used very little (1h). When I buy used computers, I always buy a new hard drive. The computer arrived with Windows 10 pro installed and activated, which is not important for me because I definitely use Linux. Debian 12 works great, it boots very fast and everything works great so far. The only thing I would recommend to the seller is to use Amazon delivery service or UPS because FedEx is really terrible at least in New York. When I saw that it would be delivered to me by FedEx, I already wanted to give up. Luckily the computer was well wrapped with protective nylon.