DELL OPTIPLEX3040 SF Purchased from another flea market site. I've checked it over as best I can, and it seems to be in good working order. I'm selling it because I bought another one and no longer need this. The fan seems a bit noisy for a few seconds when starting up. It has been initialized. I don't have the knowledge to answer technical questions, so please understand. Accessories: Wi-Fi adapter D-PORT cable Power cable Windows 10 Pro 64-bit SSD 512GB installed (almost new) Memory: 12GB CPU: Core i5 6500 USB 3.0 equipped DVD Super Multi Drive Graphics: Intel HD Graphics 530 HDCP output capable HDMI and DisplayPort output terminals, supports dual monitors. Security: Windows Defender Wired LAN supports Gigabit, high-speed communication Form Factor: Small Form Factor OS: Windows 10 Pro CPU: Intel Core i5 Memory: 12GB Storage Type: SSD Storage Capacity: 481-512GB