Miniature Desktop Style Case for Raspberry Pi 4B (Not Compatible with Pi 3) Matte Black Aluminum Body and Transparent Acrylic Cover Effective CPU Cooling System with Large Heatsink and 4000rpm Fan Low Noise 17dBA Cooling Fan for Quiet Work Environment (*** Please check the exhale orientation of the fan in the manual. Wrong orientation may cause friction noise between a spinning wheel and opposite surface area) Color Changing RGB Mood Light with Adjustable Brightness Controller