GDSTIME Big Airflow 4X 120mm Fans with 100V-240V AC Powered Speed Controller for DIY GPU Mining Rig Server Racks AV Cabinets TVs Routers Cooling Ventilation

Product Description
This 4x 120mm variable speed fan is ideal for DIY projects. you can DIY the fans to different shapes for various applications. Such as DIY a long strip cooling fan for TVs; a 2x2 mode fan for routers cooling; or use separately (the farthest distance between the two fans is about 2.8 ft).
The fan assembled metal grills on both sides to protect your hands; Silicone Rubber absorbs noise and surface friction caused by fan vibrations. The fan contains long life dual ball bearings, the fans can be positioned to stand upright or laid flat to cool various electronics and components. Average running 50, 000 hours (at 77) of cotinual use. The fan connector is 5.5 x 2.1 mm DC female jack, compatiable with power adapter 5.5 x 2.1 mm DC male plug. This fan system is CE and RoHS certified.

Easy Speed Control
The fan includes a variable speed controller with power switch to set the fan's speed to optimal noise and airflow levels for various environments. 100v to 240v 50/60Hz input, DC 4v to 12v 2A output. Connect two fans with a Y splitter power cable to share one power adapter; Just plug it into a wall outlet and the fans will work at the same time.

Widely Applications
This variable speed fan is popular in a variety of applications; Popular used in gpu mining rig, server cabinets; radiators, workstations, AV closets; window fan, grow tent, home theaters, entertainment centers, and enclosures and racks holding computers, receivers, amplifiers, modems, routers, DVRs and other AV equipment.