Dual Built-in 200mm 5V ARGB Case FansPreinstalled with two 200mm 5V ARGB front fans featuring hydraulic bearing, 9 addressable LEDs and 16.8 million-color illumination to guarantee high airflow and custom system designs to show off your PC design skills.One Click, Switching The ModeThe 5V ARGB fans can be controlled using a simple interface built into the I/O panel that cycles through 7 different lighting modes and a range of different color options.Tt LCS CertifiedTt LCS Certified is a Thermaltake exclusive certification applied to only products that pass the design and hardcore enthusiasts standards that a true LCS chassis should be held to. The Tt LCS certification was created so that we at Thermaltake can designate to all power users which chassis have been tested to be best compatible with extreme liquid cooling configurations to ensure you get the best performance from the best features and fitment.Sync with Motherboard RGB SoftwareDesigned to synchronize with ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync and ASRock Polychrome. It supports motherboards that have a 5V addressable RGB header, allowing you to control the lights directly from the above-mentioned software without installing any extra lighting software or controllers. For more details, please visit ASUS, GIGABYTE, MSI and ASRock official websites.Angular, Mesh Front PanelExpanded from the gaming spirit of the classic Commander MS-I chassis, the uniquely design full mesh panel optimized airflow. With its modern design and high performance, it is the best choice for both gamers and enthusiasts.Built-in PSU CoverEquipped with a PSU cover with a ventilated design to improve airflow and hide those unsightly cables.Seamless Tempered Glass PanelThe tempered glass side panel of the Commander C31 is built to be more durable and scratch resistant than older acrylic panels.Superior Hardware SupportThe Commander C31 has outstanding expandability with support for a tower CPU cooler with maximum height 180mm, a dual expansion slot VGA of up to 310mm in length with reservoir, and a power supply with length of up to 200mm.Excellent Cooling CapabilityOptimized for excellent cooling capability with two 200mm 5V ARGB front fans and one 120mm standard rear fan. The case is able to house up to two 200mm, two 140mm or three 120mm front fans, up to two 140mm fans on top to allow users build a complete high-end system.Handy I/O PortsDual 3.0 USB ports on top-front panel to grant direct access when needed. As well as an ARGB button for controlling 7 lighting modes of ARGB fans.