Found old dell wyse 5060 thin client with a good price around 50 usd.
Dell Wyse 5060
AMD GX-424 4 cores 2,4 ghz
4 gb ddr3 ram
gigabit LAN
8 gb internal flash memory
So cpu and ram should be enough to run steamcmd under linux os for example one cs go server. Changing flash memory for ssd disc is easy job.
Someone ever tried this or something similiar wit thin clients??