The Obsidian Series 700D full tower chassis is designed from the ground up with enthusiast builders in mind. Like the multiple award winning Obsidian Series 800D, the 700D incorporates dozens of advanced features designed for extreme flexibility and ease of use. A unique cable routing system virtually eliminates cable clutter that can impede airflow. A removable CPU backplate makes heatsink installation and upgrades easy. You can install up to six hard drives or solid-state drives. Three separate cooling chambers provide optimum isolated cooling zones for your hard drives, graphics cards, and power supply. All this is quietly cooled by three included 140mm fans, with room for up to four more 120mm fans, including the triple 120mm radiator friendly top exhaust panel