Fit for 5 Reserve all interfaces, easier to use Support installation of cooling fan 5 has higher performance and generates more heat; fan helps prevent overheating during operation Suitable for various usage scenarios with improved heat dissipation Type: B-1 x Acrylic shell + 1 x Screw pack Note: 5 is not included Red cable of fan connects to 5V pin on GPIO; black cable connects to GND Bottom with hanging vent holes Tear off the protective film before use There is a protective film on the acrylic surface; please remove it before use Material: Acrylic Color: Transparent Package contents: 1 x Acrylic shell 1 x Screw pack (5 not included) Only the items listed above are included; other products are not included Note: Due to light reflection and differences in display screens, the color in the image may vary slightly from the actual product. Measurement error allowed is +/- 1-3 cm