Two Air Penetrator fans provided for excellent performance Motherboard racks and removable top panel Quick access to the HEPA filter provides exceptional filtering of dust and air contaminants (G11400998-RT) Waterproof design with a closed top panel and a front / rear splash guard Convenient cable routing for excellent cable management Adjustable mounts for large CPU coolers and graphics cards Accommodates up to seven 3.5 'hard drives and four 2.5' SSD's