With its simplicity and elegance, the P380 is a successful blend of the stylish design, sophisticated cooling and proven Quiet Computing features of Antec's award-winning Performance One enclosure series. Like all models in the series, the P380 is equipped with double-layered noise-dampening side panels, creating a system that is almost inaudible even when the fans are spinning at a high speed. With roomy interior, the P380 is compatible with CEB and standard ATX motherboards and includes nine expansion slots to support up to 18.3" long graphics cards. The P380 also offers advanced computing features like dual power / reset button design, grommet-lined cable routing paths, elegant aluminium front panel features two well placed USB 3.0 and USB 2.0 ports, and audio in/out jacks. The case boasts one slim optical drive bay, three anti-vibration 3.5"/2.5" removable drive cages (eight 3.5"/2.5" HDD bays). The chassis support the ability to flip the I/O panel (USB Ports and Audio ports) to either the left side or right side of the chassis for ultra ease of use to enable you to position your chassis either side of your monitor. The front bays all are removable to allow for excellent watercooling radiator support. You can mount a 3 bay HDD cage in the base of the chassis in the middle to provide HDD support and full radiator support too. Features: A Front mounted hidden slim ODD tray to ensure the best, most subtle of sytlish designsHDD and 5.25" bays are all fully removable to provide maximium airflow and watercooling support6 x 3pin Fan hub power board on rear side of motherboard trayI/O port is switchable to either right side or leftGrommited cable management holes with massive space behind the motherboard trayFull 6mm Aluminum top/front panel for quality finese not seen before on any PC chassisDual Layer sound dampening designRubbberised HDD trays to reduce noise Specifications Dimensions W: 224mm H: 555mm D: 557mm Material Steel chassis with aluminium front and top panels Weight 9.5kg Motherboard Support SSI CEB, E-ATX, ATX, Micro ATX, Mini-ITX External Features 1x Audio/Mic, 2x USB 2.0, 2x USB 3.0 Drive Bays/Expansion: Internal 2.5" bays: 8 Internal 5.25" bays: 2 External Slim ODD: 1 PCI Expansion Slots: 9 GPU Support Up to 18.3" / 465mm CPU Cooler Max Height 180mm Warranty 3 years Air Cooling Support 3 x 120mm/2 x 140mm top exhaust fan mount(2 x 140mm FDB fan pre-installed) 3 x 120mm/2 x 140mm front intake fan mount 1 x 120 mm rear exhaust fan mount(1 x 120mm FDB fan pre-installed) Water Cooling Support 1 x 360mm radiator / 1 x 240mm radiator at front 1 x 360mm radiator /1 x 240mm radiator on the top Other features Enlarged CPU Cutout