1x pre-installed DC fan (rear). Added a dust filter at the top panel. one USB 3.0+one USB 2.0 Ports. Fully black interiors. Patented air intake channel furnished along the front panel perimeter. All-metal mesh design for maximum cooling. Accommodates long VGA card installation. Slide-in HDD mounting designs for easy installation. Tool-free mounting for ODD/HDD. High-quality aesthetic rubber coating. 2 water cooling grommets at the rear. Wide CPU cutout for CPU cooler mounting. Floor-mounted PSU for effective cooling and more spacious interiors Improved cable management. Support rear-mounting of a 120 mm Liquid Cooler installation.