This versatile 40mm USB fan is a USB computer fan and USB mini fan, perfect for cooling laptops, WiFi towers, 3D printers, cable modems, Steam Decks, and more. It functions as a CPU cooler, Ender 3 fan, and PC case fan, ensuring your electronics stay cool. For hobbyists, it serves as a micro fan, mini computer fan, and mini cooling fan, ideal for small space cooling needs. It's also a mini USB fan, mini PC fan, and miniature fan, making it perfect for portable use. As a small computer fan and small USB fan, it fits neatly into tight spaces. It doubles as a Terrarium fan and Reptile fan, maintaining ideal environments for your pets. For cosplay enthusiasts, it functions as a Fursuit fan and Helmet fan, ensuring comfort. It's also a Welding helmet fan and Xbox Series S cooling fan, providing reliable cooling for various applications. Whether you need it for your computer, hobby projects, or personal comfort, this fan is a must-have