Details
Easycargo 2-Pack 120mm USB Fan Quite, USB Fan 5V, Cooling USB Fan with Multi Speed Controller (120mm)

Includes 2-packs 120mm quite USB Cooling fan + Fan multi-speed controller.
Built for low-noise and durable cooling performance.
The One-to-Two USB fan speed controller is for optimum air-flow and noise control.
Dual-ball bearings fans with long lifetime (70000 hours working at 40℃ Environment).
Please note: Blue light on the fan controller means "OFF" state. Press the middle button, the controller status becomes "ON". If the fans are not working, need to keep press the "UP" button on the controller to turn on the fans. The fan controller has memory function. It can work with automatic timers.