One side panel is solid black and removable for CPU cooler mounting or cable routing. The front panel with the "origin" logo on it is detachable, to clean the filter that's behind it. It features two 5.25" bays for optical drives, card readers, or any other antiques you might like to install in your PC, and also has two internal 3.5" drive bays, and a detachable plastic cage with two 2.5" HDD/SSD bays.
eBay