Thermaltake Versa H21 Mid-tower chassis Ideal for home-computer builders and gamers, with enough space for high-end hardware and expansion. 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. Tool-free Installation Innovative 5.25” & 3.5” tool-free drive bay design minumized the hassels of installing/removing. Trio drive bay concept “3 + 3 + 3”, a perfect ratio for accessory and storage devices. 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. Optimized Ventilation Preinstalled one 120mm rear exhaust fan, optional 2 x 120mm intake fans to optimize system ventilation with dust filter.