The CiT Classic Midi is a compact ATX chassis design that supports both Micro ATX and ATX motherboards and is aimed at business and home office solutions. Equipped with 2 x USB 3.0 and 2 x USB 2.0 ports, the Classic Midi also supports a rear 80mm fan. Power Supply A basic 500W power supply is pre-installed, with the following specifications and cables: PSU Rail Outputs +3.3V: 28A +5V: 30A +12V: 27A -12V: 0.3A +5VSB: 2.5A Connectors 1 x 20+4-pin ATX 1 x 4-pin CPU 2 x SATA 2 x Molex 1 x FDD Clearances Max GPU Length: 320mm Max CPU Cooler Height: 145mm