WINDOWS Peace, mercy, and blessings of God be upon you. The device is custom-built, I assembled it piece by piece. The device is very powerful, suitable for designs and games. I've had it for a year and use it for designs and games, and the device is giving me amazing performance. If you want more details about the device, my number for contact is ( Phone number appears when clicking the contact button ) . Device information: Graphics card: 7900xtx Processor: i7 Operating System: Windows