You look for swelling/inks removed , color into the ISO......etc.....It's pretty obvious when Iso doesnt like a plastic.......
-------------
Front end of 66 inch ATX 2.0 extension ,+ (12V aux) , +(4 wire molex)......harness nearly done ;
-------
Mobo fit :
-------
I bought the safety disconnect , A.K.A. 'The Kill Switch' today ;
-----