The be quiet! Pure Base 501 DX is a white midi-tower case designed to house ATX, M-ATX, and Mini-ITX motherboards. It comes equipped with three pre-installed Pure Wings 3 140mm PWM fans located at the top, front, and rear, which operate at 1200 rpm to keep your components cool while maintaining a noise level of 21.9 dB(A). For those using liquid cooling, you can install radiators up to 360mm in the front, 240mm at the top, and 140mm at the rear. Its build combines a steel top and side panel with an ABS front panel and a tinted tempered glass window that lets you see the internal ARGB lighting. The chassis measures 450 x 231 x 463 mm including the stands and weighs 7.9 kg. To keep the system quiet, it features insulation mats on the side panel and decoupled mounts for both the power supply and hard drives to reduce vibrations. Inside, you will find space for two 3.5" and five 2.5" drives, along with rotatable PCIe slots that allow for vertical GPU mounting across up to five slots. The front panel provides easy access to a USB 3.2 Gen 2 Type-C port, two Type-A ports, and a dedicated ARGB controller button, making it a practical choice for users who want a balance of aesthetic lighting and acoustic comfort in a clean white finish.