The elegant, glazed side panel is compatible with the Silent Base 801 and Silent Base 601 cases, allowing you a perfect view of the components inside your PC case. The window is made of 4 mm tinted and tempered glass. All four sides of the window are painted black to conceal the underlying screw holes and provide an unobstructed view into the interior of the case. The side panel features a mounting system with push pins for secure and user-friendly disassembly.