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Black 135mm square case fan with 25mm thick frame and four-pin connector

SXDOOL

SXDOOL SXD13525B12H 135mm case fan

SKU CH-X7XX-ZWD6C

135 mm ball-bearing case fan moves 124.85 CFM at 2700 RPM with 49.7 dBA noise on a 4-pin 12 V connector

  • Fan size135 mm
  • Number of fans1 Fan
  • Fan depth25 mm
  • Bearing designBall
  • Rotational speed2,700 RPM
  • Airflow rate124.85CFM
  • High airflow of 124.85 CFM cools dense server chassis
  • Ball bearing design extends operational life in continuous use
  • 12 V DC input matches standard server power rails
  • 2700 RPM speed delivers strong static pressure of 8 mmAq
  • Safety certifications CE, TUV, UL and CUL assure compliance

135 mm ball-bearing case fan

The SXDOOL SXD13525B12H is a 135 mm square frame fan 25 mm thick designed for server and inverter cooling. It runs on 12 V DC at 0.70 A and spins at 2700 RPM to deliver 124.85 CFM airflow with 8 mmAq static pressure. A four-pin power connector allows PWM speed control. Safety approvals include CE, TUV, UL and CUL.

Direct replacement for ADN and AFB models

This fan is specified as a drop-in replacement for ADN512UB-A90, ADN512UB-A91 and AFB1312M units. The jump is worth it when the original fan has failed, become noisy or can no longer maintain required airflow in the chassis. Ball-bearing construction provides longer service life than sleeve alternatives in continuous-duty server environments.

Verify mounting hole pattern and connector pinout

Confirm the 135 mm by 135 mm frame matches the existing cut-out and screw spacing in your enclosure. Ensure the four-pin header on your board or fan controller matches the fan's connector keying. Check that 12 V DC supply and 0.70 A current draw are within the controller's rated limits before ordering.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $6.99
Cheaper than about 94% of the 8,339 comparable items (median $19.99).
Fan size 135 mm
Higher than about 78% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand nameSXDOOL
Product typeCase Fan
Product colorBlack
Performance
Rotational speed2,700 RPM
Airflow rate124.85CFM
Power
Power input connector4 Pin
Size & build
Fan size135 mm
Number of fans1 Fan
Fan depth25 mm
Bearing designBall
Environment & compliance
Operating noise49.7 dBA

Questions about this item

Will the 135mm by 135mm by 25mm frame fit my server chassis mounting holes?

The fan frame measures 135mm square and 25mm thick, matching the standard 13525 form factor used in many server and inverter chassis.

How do I connect the 4-pin power connector correctly?

Align the keyed 4-pin PWM header with the motherboard or controller socket; the connector only seats one way, so do not force it.

When should I plan to replace the ball-bearing fan?

Ball bearings typically run for tens of thousands of hours at 2700 RPM; monitor for rising noise above 49.7 dBA or reduced airflow as replacement indicators.

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