Distinctive SilverStone design recognized by the masses Embodying the characteristics & qualities of the iconic Fortress FT03, ALTA G1M features a 90-degree rotated motherboard layout and a small overall footprint that's tall in height but short on depth. Hot air rises, and rising air cools By following the natural convection of air, ALTA G1M's layout design combined with a pre-installed Air Penetrator 180 mm fan, contributes to excellent bottom-to-top directional airflow (stack effect), which takes advantage of hot air's natural tendency to rise. Built for the highest-end of components ALTA G1M is compatible with a maximum of a 360 mm radiator whilst capable of accommodating graphics cards of any length, and of any height up to 4 slots. Product Type=System cabinet Form Factor=microATX tower Color=White I/O Connectors=2 x USB 3.0 1 x USB 1 x headphone/microphone Supported Motherboards=microATX, Mini-ITX System Cabinet Features=Removable dust filter, cable management system, supports mm radiator in side panel Power Device=No power supply (SFX12V/SFX-L12V) Dimensions (WxDxH)=7.9 in x 12.1 in x 20 in Weight=13.23 lbs Form Factor : microATX tower Max Mainboard Size : Micro ATX Supported Motherboards : microATX, Mini-ITX Max Supported Dimensions : 24.4 cm x 24.4 cm Internal Bays Qty : 4 Product Material : Plastic, steel Color : White Cooling System : Bottom: 180 mm fan x 1 Rear: 120 mm fan mount x 2 Side: 120 mm fan mount x 3 CPU Cooler Max Height : 159 mm Video Card Max Length : 355 mm Power Supply Max Length : 130 mm System Cabinet Features : Removable dust filter, cable management system, supports mm radiator in side panel Expansion Bays : 4 (total) / 4 (free) x internal - 2.5 / 3.5 shared Expansion Slots : 4 Interfaces : 2 x USB 3.0 1 x USB - USB-C 1 x headphone/microphone - mini-jack Power Device : No power supply Specification Compliance : SFX12V/SFX-L12V Width : 7.9 in Depth : 12.1 in Height : 20 in Weight : 13.23 lbs