Features: brand new and high quality This is the new version heatsink for case with fan for Raspberry Pi 4 B module With fast cooling fan and heat-dissipating for shell, simple and practical cooling for case. Mute cooler fan, you don'for t have to worry about the noise. Reinforced aluminum alloymaterial, lightweight and durable, long-lasting stainless All ports and slots of the aluminum alloy for case can match with Raspberry Pi 4B computer perfectly. Specifications: Type: Aluminum Alloy for Case and Heatsink Model: Pi 4 B Heatsink for Case Material: Aluminum Housing with Fan kit Function: Cooling and for Protection for Raspberry Pi 4B Enclosure Size: approx 91x63x32mm/3.58x2.48x1.26in Fan Size: approx 30x30x7mm/1.18x1.18x0.27in Color: Black / Silver Note: Does not include Raspberry Pi 4 B. Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1 PC x Cooling Fan 1 PC x Aluminum Alloy Heatsink for Case