New 4cm Small Fan, Quiet, Set of 2, 3-Speed Airflow Adjustment, 5V USB Cooling

Opened and briefly tested for photography purposes.

[Long Operation & Quiet Design]
The fan uses a high-quality motor. With an ultra-low power consumption design, the current at maximum rotation is only about 0.2A, allowing for more stable operation and continuous long-term use. The blades are made of lightweight and durable PBT material, ensuring stable operation with minimal vibration and quietness.

[3-Speed Adjustment & Safety Design]
The fan's rotation speed can be adjusted in 3 levels. The maximum rotation speed is 5500 RPM (±5%), which can be set according to the cooling target and operating environment. A metal guard is equipped on the intake side to prevent accidental contact with the blades during operation. *Note: The metal guard is only on the intake side and not on the exhaust side.

[With Cushioning Sponge & Compact Size]
With dimensions of 40×40×14mm, it can be installed even in tight spaces. Simply place it on top of your equipment for a neat appearance. The included cushioning sponge provides shock absorption and anti-slip effects, while also ensuring airflow and improving heat dissipation efficiency.

[USB Powered & Set of 2]
USB powered. Simply plug it into a USB port on your computer, router, game console, etc., eliminating the need for a separate power adapter and resulting in a cleaner setup. This set includes two 4cm fans connected by a single USB plug, increasing airflow and improving heat dissipation capacity.

[Multi-purpose]
Ideal for cooling various devices such as routers, mini PCs, game consoles, smartphones, external HDDs, and more. Effectively prevents issues like device slowdowns and freezes caused by high indoor temperatures during summer.