Yeah it doesnt specify anything about the psu. Look man. This pc is good
MORE than enough for csgo to be exact.
In my experience a prebuild pc is never as good as a build by parts from someone that know what he is doing. Some companies are trying to cut expenses by using low tier psus and cases or motherboards u dont need
etc.etc.
BUT the main specs of the pc.(cpu,gpu) are good for ur needs. And ram is enough. And the price fits more or less what u are buying...Something in the lines of 400 for the cpu,gpu,ram and 200 for the rest is reasonable with that models. Maybe the psu isnt the best in the world but okay.
If u want to play csgo u are covered. FOR SURE. Then go ahead and buy it. If u need something better then u should go to...