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Two black 120mm fans side by side with silver grilles and a control box

NO.

NO. 120mm Dual Fan Kit 110-240V AC Speed Controller 3-12V

SKU CH-Q22R-8BQ1D

Dual 120 mm fans with 110-240 V AC supply and 3-12 V speed control deliver 85 CFM each at 2500 RPM using dual-ball bearings rated for 50000 hours

  • Adjustable 3-12 V speed control lets you balance airflow and noise
  • Dual ball-bearing fans rated for 50000 hours run flat or upright
  • Two 120 mm fans deliver 85 CFM each at 2500 RPM
  • Metal guards on both sides protect blades from debris
  • 100-240 V AC input powers the kit worldwide without extra adapters

Dual AC-Powered 120mm Fan Kit

This kit includes two 120mm ball-bearing fans driven by an integrated 100V-240V AC power supply with a manual speed knob. Each fan delivers 85 CFM at 2500 RPM from a 12V 0.5A rating. The unit accepts mains input at 50/60Hz and outputs adjustable DC voltage from 3V to 12V at 200-2000mA. Dual metal guards protect the blades in either horizontal or vertical orientation.

Suited for Cabinet and Chassis Cooling

Builders cooling server cabinets, mining frames, workstation chassis or RV refrigerators can mount this pair directly to 120mm cut-outs. The adjustable knob lets you silence the fans or run them at full speed without a separate PWM header. Buyers who need PWM motherboard control, 4-pin connectors or software fan curves should look elsewhere because this unit only offers manual voltage adjustment.

Sustained Operation at Rated Speed

Dual ball bearings rated for 50000 hours support continuous 2500 RPM running in any mounting position. The metal guards prevent cable snagging during long-term vibration. Output current stays within the 200-2000mA range across the voltage span so both fans maintain stable airflow without thermal throttling during extended duty cycles.

Highlights

  • Adjustable 3-12 V speed control lets you balance airflow and noise
  • Dual ball-bearing fans rated for 50000 hours run flat or upright
  • Two 120 mm fans deliver 85 CFM each at 2500 RPM
  • Metal guards on both sides protect blades from debris
  • 100-240 V AC input powers the kit worldwide without extra adapters

Specifications

No published specifications for this item yet.

Questions about this item

What power source must I already have for the 100V–240V AC input to work?

A standard mains outlet supplying 100V–240V at 50/60 Hz is required; the built-in supply converts this to the 3V–12V DC the fans use.

Will the 120mm fans fit alongside the 120mm mounting holes in my existing server chassis?

Each fan measures 120x120x25 mm, matching the common 120mm square mounting pattern used in many server and workstation chassis.

How can I confirm the kit is delivering the rated 85 CFM per fan after installation?

With the knob turned fully clockwise the fans run at 2500 RPM; you should feel strong, steady airflow and hear a consistent low hum from the dual-ball bearings.

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