Thermaltake Urban T21 mid-tower chassisThe unique individual defined by details- Urban T21, has a simple and sleek metal brushed front door in the front to mask the 3 ODD and 6 HDD drive bays, above the door front-top I/O ports including 2 of SuperSpeed USB 3.0 to grant ease and quickness in the need of data transfers, a side window opening panel to take an instant glance of the interior, heightened foot-stand and 2 preinstalled 120mm fans to optimize interior airflow, pre-mounting holes to support motherboards up to standard ATX and CPU cooler installation.Simple DesignUsing metal brushed front door panel to mask the extrusive drive devices, not only unify the appearance, but also provide a simple yet elegant aesthetic.Handy I/O portsThe Front-top panel has implemented two of latest data transfer SuperSpeed USB 3.0 ports, a HD microphone and headset jacks, to grand direct access when needed.Ventilation OptimizePreinstalled two 120mm fans to optimize system ventilation, plus pre-mounted holes for more ventilation options.Tool-free InnovationInnovative 5.25in. 3.5in. tool-free drive bay design minumized the hassels of installing ODD and HDD devices.Convenient SupportPre-mounting holes to support motherboards up to standard ATX and CPU cooler installation, extra long graphic cards also supported. Thermaltake Urban T21 Mid-tower Chassis is one of many Computer Cases/Enclosures available through Office Depot. Made by Thermaltake.