- The NZXT H9 FLOW puts your components on display with wraparound glass panel - It's got dual-chamber design, which improves thermals and gives it a clean look - It comes with 4 fans in the box and there's room for 6 more to get the air moving - The perforations are designed to improve air flow and keep dust away from your hardware - You'll have tool-less access and plenty of space - it can fit a 420 mm radiator and a 459 mm GPU