A continuation of the design of the Jonsbo V3, V4 has completely upgraded the structural strength and expansion capacity. The biggest advantages of V4 is that it supports full size MATX motherboard while keeping a sharp appearance thanks to a fully anodized aluminum exterior. The aluminium is just 1.5MM thick and it has a clean appearance since no screws are visible on front panel.The strength capacity of the V has been improved over its predecessor. Three 8cm fans provide enough heat dissipation for the entire case and GPUs up to 260mm long are supported.Model:V4Color: BlackDimension:238mm (W) x 278 mm (H) x 290 mm (D)Motherboard: MATX,ITX(24.5MM*24.5MM)CPU Cooler: 120MMDisplay Card: 260MMStructure Material: 1.5MM Aluminum AlloyFront panel material: 1.5MM Aluminum AlloyDrive Bay: 23.5,12.5 Or 32.5Front I/O:USB3.01, USB2.01,Mic1,Audio1Cooling System: 8CM3 (not built-in)Fan Speed Control:1 Specialized switch can be installed(not built-in)Expansion Slot:4Power Supply: Standard ATX PS2(not built-in)Weight:Net:2.0KG,Gross:2.6KG