Be Quiet Light Base 900 DX Case Reasons To Buy ✓ Three different layout options ✓ Pre-installed ARGB & PWM hubs ✓ Supports back-connector motherboards Reasons To Avoid ✗ Dust filters aren’t easily removable Expert Reviews Be Quiet Light Base 900 DX Case Review: Innovative design with lots of space —Three different layout options, with two pre-installed PWM/ARGB hubs. Be Quiet’s Light Base 900 DX looks good and can be customized with three different layouts. By Tom's Hardware · 7 months ago