I'm currently running Horizon Zero Dawn on Ultra settings on this machine, and it runs smooth as silk. I am impressed with the nice graphic quality and performance. The product description says two expansion bays are available, but they are not in the machine, so don't rely on that. It's easier and faster just to use a docking bay like I have in the photo. I run my games from the SSD and use the 2 TB hard drive for backups. The description also states there is 5.1 surround sound but there are no instructions or connections for that - it appears the PC is capable of stereo sound or quadraphonic. I contacted Amazon support. They were very helpful and assured me the problem would be corrected.