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Black 140mm case fan with 25mm thick frame and nine dark blades, PWM 4-pin connector visible

Phanteks

Phanteks PH-F140M25_PWM_BBK01 140mm 25mm case fan

SKU CH-BTF4-GSZNS MPN PH-F140M25_PWM_BBK01

A 140 mm PWM case fan delivering 104.62 CFM at 36.57 dB(A) with daisy-chain cabling

  • Fan size140 mm
  • Number of fans1 Fan
  • Fan depth25 mm
  • Bearing designHydraulic
  • Rotational speed500-1800±10% RPM
  • Airflow rate104.62 CFM

Fan Size 140mm

Style Regular / No DRGB

Model M25

Model Single Fan

  • High airflow of 104.62 CFM for effective radiator cooling
  • PWM control from 500 to 1800 RPM for precise speed adjustment
  • Daisy-chain cables allow multiple fans on one PWM header
  • Hydraulic bearing keeps noise at 36.57 dB(A)
  • 140 mm by 25 mm size fits standard case mounts

140mm PWM case fan for radiators

The Phanteks M25-140 is a single 140mm by 25mm case fan built for high static pressure. It targets builders who need strong airflow through dense fin stacks such as radiators or heatsinks. The hydraulic bearing and wide PWM range suit both quiet daily use and demanding cooling loads. It connects via a standard 4-pin header and includes no lighting.

Thermals noise and power at typical speeds

At lower RPM settings the fan moves air through restrictive filters and radiators while keeping motor and bearing noise low. The supplier rates noise at 36.57 dB(A) and airflow at 104.62 CFM when the fan runs at its 1800 RPM maximum. PWM control allows precise adjustment between 500 and 1800 RPM so acoustic output matches the thermal demand. A single 4-pin connector powers the unit.

Sustained load behaviour and daisy-chain limit

Under continuous high-load operation the fan maintains its rated speed to deliver consistent cooling for powerful components. The hydraulic bearing is designed for durability during prolonged use at elevated RPM. Daisy-chain cabling lets multiple fans share one PWM signal, though each additional unit adds to the total current draw on that single header. Buyers who need more than one fan per header should verify their motherboard's current limit.

How it compares

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

Price $11.99
Cheaper than about 85% of the 8,339 comparable items (median $19.99).
Fan size 140 mm
Higher than about 80% of the 1,114 comparable items (median 120 mm).

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Specifications

Product
Brand namePhanteks
Model nameM25-140 Fan, Black
Part numberPH-F140M25_PWM_BBK01
Product typeCase Fan
Product colorBlack
Performance
Rotational speed500-1800±10% RPM
Airflow rate104.62 CFM
Power
Power input connector4 Pin
Size & build
Fan size140 mm
Number of fans1 Fan
Fan depth25 mm
Bearing designHydraulic
Shipping weight0.27 kg
Package size203 × 142 × 89 mm
Environment & compliance
Operating noise36.57 dB(A)
More details
LED lightingNo DRGB

Other versions of this model

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Questions about this item

How do I connect the 4-pin PWM daisy-chain cable to the motherboard header?

Plug the first fan's 4-pin connector into the CPU or chassis fan header, then link additional fans using the daisy-chain leads; the motherboard controls all fans from that single header.

How often should the hydraulic bearing be serviced or the fan replaced?

The sealed hydraulic bearing is maintenance-free; replace the fan only if noise rises above 36.57 dB(A) or airflow drops below 104.62 CFM after years of continuous use.

At what point does the 1800 RPM limit become the bottleneck during sustained loads?

When the curve hits 1800 RPM the fan cannot spin faster, so any extra heat must be handled by adding more fans or improving case airflow instead.

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