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Black 135mm square frame cooling fan with ball bearing, two-wire power connector, no LED lighting

OEM Industries

OEM Industries ADN512UB-A90 135mm Ball Bearing Fan 12V 0.44A

SKU CH-T9SN-2B13X

135 mm ball-bearing case fan delivers 80 cfm airflow at 2500–2999 rpm with a 35–40 dBA noise level

  • ColorBlack
  • TypeFan only
  • Fan Size135mm
  • Bearing TypeBall
  • Power Connector2 Wires
  • LEDNo
  • 135 mm frame fits wide range of cases
  • Ball bearing design extends operating lifespan
  • 80 cfm airflow cools components effectively
  • 35–40 dBA noise stays unobtrusive
  • 12 V 0.44 A draws minimal power

135 mm Ball-Bearing Case Fan

The OEM Industries ADN512UB-A90 is a 135 mm cooling fan with a dual ball-bearing motor and a two-wire 12 V connection. It fits PC cases, network switches or 1U server chassis where a compact frame and reliable rotation are required. The black frame carries no LED lighting.

Sustained Airflow at 2500 – 2999 rpm

At full speed the fan moves more than 80 cfm while acoustic output stays between 35 and 40 dBA. The ball-bearing design maintains consistent rotational speed during continuous duty cycles without the wear pattern seen in sleeve alternatives. Performance remains steady across extended operating periods.

Two-Wire Power and Fixed Speed Operation

The 2-wire connector supplies 12 V at 0.44 A but provides no PWM or voltage-control signal, so the fan runs at its rated speed whenever powered. Builders needing automatic speed curves or software monitoring should note this limitation. The simple wiring suits always-on server or networking roles where constant airflow is preferred.

Highlights

  • 135 mm frame fits wide range of cases
  • Ball bearing design extends operating lifespan
  • 80 cfm airflow cools components effectively
  • 35–40 dBA noise stays unobtrusive
  • 12 V 0.44 A draws minimal power

Specifications

ModelADN512UB-A90
ColorBlack
TypeFan only
Fan Size135mm
Bearing TypeBall
Power Connector2 Wires
LEDNo

Questions about this item

How loud is the ADN512UB-A90 when it runs at 2500-2999 rpm all day?

The fan produces 35-40 dBA at its rated speed range, which is a moderate hum suitable for a server or workstation chassis.

What power connector does the ADN512UB-A90 need to operate?

It uses a two-wire lead that plugs into a standard 12 V fan header or a compatible power supply connector.

Will the 135 mm frame and two-wire lead fit the older 1U server tray I already own?

The 13525 form factor and 12 V 0.44 A rating match many legacy 1U server mounts, so it should drop in without an adapter.

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