I've built this custom gaming PC from a Dell Optiplex 7020.

Hardware Includes:

SSD: Samsung EVO 256 GB SSD
Storage HDD: Seagate Barracuda 3TB HDD
PSU: Corsair RM550x 550 watt power supply
CPU: Intel i5-4590 @ 3.30GHz
GPU: MSI Nvidia GTX 1050ti
Network: USB Realtek Wifi Adapter at 600 Mbps
RAM: 16 GB

Comes preinstalled with Bazzite Linux which is the PREMIERE Linux-based operating system for gaming.

Already set up for Steam, GOG, Retroarch and more!