What Game System Does The Sim Supply Use On His Gaming Youtube Channel?

I was searching for The Sims 4 games in youtube and I find The Sim Supply youtube channel one of the coolest youtube channel for The Sims series. It shows himself in the foreground while playing the game while tt has wide screen projection to display his gameplay in the background. It looks like he is in a recording studio with a gameplay screen projection at his back. I wonder what devices, tools, computers did he use on his videos online most especially in youtube.