Tempered Glass Window The tempered glass window on the side of the H100 TG is built to be more durable and scratch resistant than older acrylic panels. Superior Hardware Support The H100 TG has outstanding expandability with support for a tower CPU cooler with maximum height 180mm, a dual expansion slot VGA of up to 320mm in length, and a power supply with length of up to 160mm (with 3.5 HDD Drive installed) and up to 220mm otherwise. model : Thermaltake H100 TG ATX Mid Tower Chassis with motherboard support up to ATX and one preinstalled 120mm fan tag : Computer Cases