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Transparent 135mm ball-bearing case fan with two-pin power connector

OEM Industries

OEM Industries ADN512LB-A91 135mm Ball Bearing Fan

SKU CH-BVQW-EA31W

135 mm ball-bearing case fan delivering up to 80 CFM airflow at 25–30 dBA with a 2-pin 12 V connector

  • Fan size135 mm
  • Bearing designBall
  • Power input connector2 Pin
  • Product colorTransparent
  • Product typeFan only
  • 135mm diameter fits wide case mounts
  • Ball bearing design extends operational lifespan
  • 12V 0.22A draw keeps power use low
  • 2500 to 2999 RPM delivers over 80 CFM airflow
  • 25 to 30 dBA runs quietly in background

OEM Industries 135mm Ball Bearing Fan

This 135mm cooling fan uses a ball bearing design for reliable airflow inside a PC case or switcher. It runs on 12V power through a standard two-pin connector and has no LED lighting. The transparent frame suits builds where internal visibility is preferred.

Suited for case and switcher airflow upgrades

Builders who need a simple 135mm replacement fan with ball bearing durability will find this model fits the requirement. It is not intended for CPU heatsink mounting or liquid-cooling radiators. Buyers who need PWM speed control or a tachometer signal should look at a different specification.

Two-pin power connector defines control

The 2-pin connector supplies 12V at 0.22A without a third wire for speed reporting or PWM input. Speed ranges from 2500 to 2999 rpm, delivering over 80 cfm at 25 to 30 dBA. This fixed-voltage design determines whether the fan matches your motherboard or controller capabilities.

How it compares

Measured against everything we stock in CPU Coolers & Heatsink Fans, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 70% of the 1,559 comparable items (median $19.99).
Fan size 135 mm
Higher than about 92% of the 812 comparable items (median 80 mm).

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Specifications

Product
Model nameADN512 lb-A91
Product colorTransparent
Product typeFan only
Power
Power input connector2 Pin
Size & build
Fan size135 mm
Bearing designBall
More details
LED lightingNo

Questions about this item

Should I pick the 2500 RPM or 2999 RPM version of this fan?

This model runs between 2500 and 2999 RPM as a single variant; there is no separate version to choose.

What does 80 CFM airflow mean when the fan is mounted in a case?

It can move up to 80 cubic feet of air per minute at full speed, though actual flow drops with grilles, filters or restricted vents.

What does the 2-pin connector limit compared to a 3-pin or 4-pin header?

The 2-pin connector supplies 12 V at 0.22 A but carries no tachometer or PWM signal, so the motherboard cannot monitor or control fan speed.

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