The be quiet! Light Base 900 FX in white is a mid-tower case designed for those who want to showcase their hardware through a panorama view, featuring tempered glass panels on both the front and side. Its two-chamber layout provides ample space for a wide range of motherboards, from Mini-ITX up to XL-ATX, and it specifically supports backside connector systems like Asus BTF, MSI Project Zero, and Gigabyte Project Stealth to keep cables hidden from view. Cooling is handled by four pre-installed Light Wings 140mm PWM ARGB fans, with three acting as reversed side intakes and one as a rear exhaust. You can expand this setup to a total of ten fans or install large radiators up to 420mm at the top and bottom, and 360mm on the side. A three-meter ARGB LED strip with 172 LEDs adds a cohesive glow to the white interior, while two dual 12-port hubs make managing the lighting and fan speeds straightforward. Built from steel, ABS plastic, and glass, the chassis weighs 16.8 kg and measures 532 x 327 x 484 mm. It accommodates large components, supporting GPUs up to 495 mm in length and CPU coolers up to 190 mm high, including a flexible VGA holder to prevent the graphics card from sagging. For versatility, the feet can be relocated to allow the case to sit in an inverted or horizontal orientation. Maintenance is simplified by removable dust filters on the top, side, and bottom, while anti-vibration decoupling for the power supply, fans, and hard drives keeps the system quiet during operation.