xiaoqijia Dual 120mm Temperature Controlled USB/DC 12-Inch Cooling Fan ^^ 5V/12V Dual Voltage, 10-Speed Adjustable, for AV Cabinets, Server Racks, Greenhouses, RVs & Pet Enclosures

Whisper-Quiet 16dB Low-Noise Operation Ultra-silent cooling fan operates at just 16dB at minimum speed, perfect for home, office, and living areas. Ideal for AV cabinets, server racks, greenhouses, pet habitats, wine cellars, and electronic enclosures without disruptive noise. ^^ 10 Adjustable Speeds & Smart Temperature Control Features 10 customizable airflow speeds and 0-60 intelligent temp control with auto on/off. Automatically adjusts fan speed based on real-time temperature for hassle-free, consistent climate control in grow rooms, RVs, and pet nests. ^^ 5V USB & 12V DC Dual Voltage Compatibility Versatile plug-and-play design works with 5V USB (power banks, laptops) and 12V DC power sources.

The integrated speed switch ensures flexible performance for portable use, fixed installations, workshops, and outdoor setups. ^^ IPX5 Waterproof & Industrial-Grade Durability Built with IPX5 waterproof motor, dust-resistant switch, and dual-ball bearings for up to 60, 000 hours lifespan. Sturdy CNC aluminum alloy panel and dual protective grilles ensure safety, longevity, and reliable cooling in harsh environments. ^^ Daisy-Chain Expandability & Synchronized Control USB 5V mode supports daisy-chaining up to 4 fans, while DC 12V powers 2 fans at full load. Control multiple fans with one shared controller for synchronized operationideal for server racks, large cabinets, and multi-unit setups with zero complex setup.