This product is a junk item missing the 3TB HDD. HDD mounting screws are included. (See photo 6) It stopped booting with messages like those in photos 2 and 3. This product was used for several years in its original configuration, without any memory upgrades. How about it for those who repair or salvage parts? The items for sale this time are the PC itself, keyboard, mouse, and AC adapter only. There are some minor dust and scratches, but since it was not carried around, I think it is generally a clean product. I am selling it to dispose of it. If you have no questions, you can buy it immediately. Thank you for your consideration. Form Factor: Monitor Integrated OS: Windows 10 Home CPU: Intel Core i7 Memory: 8GB Other Features: Junk