The CQ-01B-U3 - 2x ext. 5.25", 1x ext. 3.5" and 3x int. 3.5" drives can be installed behind this unique front panel. All connectors such as USB 3.0 and audio are positioned in the front panel and are ergonomically easy-to-access. In addition, the possibility to install 3 x 120 mm and 2 x 80 mm fans ensures optimal ventilation resulting in a perfect thermal solution of the chassis.