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White 240 mm AIO liquid cooler with two 120 mm ARGB fans, copper pump block and white sleeved tubing

COUGAR

COUGAR Poseidon Elite ARGB White 240 liquid cooler

SKU CH-E4Q3-3EMCX

A 240 mm liquid cooler with two 120 mm PWM fans, copper cold plate and 5 V ARGB lighting for AMD and Intel sockets

  • Radiator size240 mm
  • Fan size2 Fan Slots (120 mm)
  • Compatible socketsAMD Socket AM2 / AMD Socket AM3 / AMD Socket AM4 / AMD Socke
  • Cooling block materialCopper
  • Pump dimensions82.9 × 73.3 × 50.7 mm
  • Radiator materialAluminum
  • Broad CPU compatibility with AMD AM2 through AM5 and Intel LGA 1150 through 1700
  • Quiet operation at 33.5 dB(A) with 500-2200 RPM PWM fans
  • Strong airflow of 62.53 CFM from dual 120 mm fans
  • Copper cold plate transfers heat efficiently to 240 mm aluminium radiator
  • Addressable RGB lighting via 5V 3-pin connector in white finish

240 mm liquid cooler for mainstream builds

The COUGAR Poseidon Elite ARGB White 240 is a closed-loop liquid cooler with a 240 mm aluminium radiator and two 120 mm PWM fans. It fits AMD sockets from AM2 through AM5 and Intel sockets from LGA 1150 through LGA 1700. The copper cold plate and 400 mm tubing suit standard mid-tower cases. White finish and 5 V 3-pin ARGB lighting match light-themed builds.

62.53 CFM airflow at 2200 RPM

The dual 120 mm fans spin between 500 and 2200 RPM, delivering up to 62.53 CFM and 2.4 mmH2O static pressure. At maximum speed the noise reaches 33.5 dB(A), which is audible in a quiet room. The pump runs from the same 4-pin PWM header, so fan and pump curves stay synchronised. Thermal headroom is adequate for mid-range CPUs at stock or modest overclocks; sustained heavy loads on high-core-count chips will push coolant temperatures higher.

PWM control and 5 V ARGB need compatible headers

Fan and pump connect through a 2510 4-pin PWM header, requiring a motherboard header that supplies PWM control and sufficient current. The ARGB lighting uses a 5 V 3-pin connector, so a 12 V 4-pin RGB header will not work. Builders without a 5 V ARGB header cannot control the lighting effects. The 400 mm tube length limits placement in oversized or unconventional chassis layouts.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $112.99
Pricier than about 69% of the 1,190 comparable items (median $71.99).
Radiator size 240 mm
Lower than about 80% of the 165 comparable items (median 360 mm).

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Specifications

Product
Brand nameCOUGAR
Model namePoseidon Elite ARGB White 240
Part number3MPSD240.0002
Product typeLiquid Cooling System
Product colorWhite
Performance
Fan speed500-2,200 RPM ±10%
Fan airflow62.53 CFM
Static pressure2.4 mmH2O
Ports & slots
Fan plug typeFan: 2510-4Pin PWM
Lights: 5 V-3Pin ARGB
Size & build
Radiator size240 mm
Fan size2 Fan Slots (120 mm)
Cooling block materialCopper
Pump dimensions82.9 × 73.3 × 50.7 mm
Radiator materialAluminum
Fan dimensions120 × 120 × 25 mm
Tube size400 mm
Compatibility
Compatible socketsAMD Socket AM2 / AMD Socket AM3 / AMD Socket AM4 / AMD Socket AM5 / AMD Socket FM1 / AMD Socket FM2 / Intel LGA 1150 / Intel LGA 1151 / Intel LGA 1155 / Intel LGA 1156 / Intel LGA 1200 / Intel LGA 1366 / Intel LGA 1700
Environment & compliance
Fan noise level33.5 dB(A)
More details
LED lightingARGB

Questions about this item

Will the 240 mm radiator and 400 mm tubes fit alongside my existing LGA 1700 motherboard and case layout?

The radiator uses two 120 mm fan slots and the 400 mm tubes connect to a pump measuring 82.9 x 73.3 x 50.7 mm; the block supports Intel LGA 1700 among other sockets.

How can I verify the pump and fans are running correctly after installation?

Connect the fan PWM cable to a 2510 4-pin header and the ARGB cable to a 5 V 3-pin header; the fans should spin between 500 and 2200 RPM and the pump block will light up.

Does the box include mounting hardware for AM5 and LGA 1700, or do I need a separate bracket kit?

The cooler ships with brackets covering AMD AM2 AM3 AM4 AM5 FM1 FM2 and Intel LGA 1150 1151 1155 1156 1200 1366 1700, so no extra kit is required.

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