Thermaltake Versa H21 Window Mid-tower chassis Ideal for home-computer builders and gamers, with enough space for high-end hardware and expansion. The ample ventilation options, cleanable air filter, and a perforated mesh bezel help to keep the entire system cool and dust-free. Versa H21 combines a manageable frame size with extensive options to customize user’s computer or gaming system. All black Design Designed for gamer, perforated metal mesh front and top panel to allow quick heat dissipation and rapid air intake for maximum ventilation. The heighten foot-stands at the bottom help to enhance airflow. Featuring a transparent side window to offer a direct view of inner system. Handy I/O ports The perforated front-top panel has implemented one data transfer SuperSpeed USB 3.0 port along with one standard USB 2.0 port, a HD microphone and headset jacks, to grand direct access when needed.