This sleek, mid-tower case offers the configurability and convenience essential to successful system builds and upgrades. The case offers a front access panel that makes USB, FireWire and audio ports more accessible than ever before, and with the quiet convenience of the built-in ATX12v 2.01 400W Silent Power Supply,even the most demanding systems will run at peak performance. With eight drive bays and seven expansion slots, as well as screwless case design, this case gives you the freedom to customize your computer to suit virtually any system requirement. To make troubleshooting orupgrading that much simpler, ATX8400PRO2 also offers an easy-to-open side panel, saving valuable time and eliminating hassle.