Thermaltake Versa H23 Window SPCC ATX Mid Tower Computer Chassis CA-1B1-00M1WN-01 Enthusiast Design: Designed for gamer, eSPORTS look front bezel and perforated metal mesh top panel build for easy heat dissipation and rapid air intake for maximum ventilation. The heighten foot-stands at the bottom help to enhance airflow Tool-free Installation: Innovative 5.25" & 3.5" tool-free drive bay design for easy installing/removing. Trio drive bay concept "3 + 3 + 3", a perfect ratio for accessory and storage devices. Also, Tool-free mount fan can be clipped on the dust filter Handy I/O ports: The perforated front-top panel has implemented one data transfer Super Speed 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 Convenient Support: Pre-mounting holes to support motherboards up to standard ATX and CPU cooler installation, long graphic card also supported as well as Advanced Cable Management and Liquid Cooling System Case Type: Mid Tower Material: SPCC External Bay: 2x 5.25" Internal Bay: 3x 3.5" or 2.5", 3x 2.5" Expansion Slots: 7 Front I/O Panel: 1x USB 3.0 Port, 1x USB 2.0 Port, 1x HD Audio