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Ninja 4 High Performance CPU Cooler
(3 customer ratings)

Scythe Ninja 4 High Performance CPU Cooler

- Replaces the Scythe Ninja 3 Rev.B High Performance CPU Cooler- Replaced by the Scythe Ninja 5 Dual Fan High Performance Quiet CPU Cooler

Scythe's best-selling flagship cooler is now in its fourth iteration. The Ninja 4 has improved performance and can be used with up to four fans for ultimate cooling.

The Ninja 4 is the latest model in the Ninja CPU Cooler Series, developed for uncompromising performance. It features the new T-M.A.P.S technology, an optimised alignment of heatpipes and a back-plate based on Scythe's Hyper Precision Mounting System (H.P.M.S) for firm mounting and easy installation. These improvements and a special adjustable Glide Stream 120mm PWM fan result in an increased cooling performance over its predecessors while reducing the weight. The design of the heat-sink also allows fan mounting on all four sides. This enables the optimal integration of the Ninja 4 in the air flow of the pc-case and reduces turbulence and the emergence of hotspots.


  1. New and improved Ninja!
  2. Utilises six U-shaped heatpipes
  3. 3-step fan speed switch
  4. Flexible fan mounting
  5. Supplied with Slipstream 120mm PWM fan for ultimate performance
  6. Compatible with Intel LGA2011/1366/1150/1155/1156/775 and AMD FM2+/FM1/AM3+/AM3/AM2+/AM2

Three-dimensional Multiple Airflow Pass-through Structure

By introducing the new T-M.A.P.S technology for the Ninja 4, Scythe were able to increase the cooling capacity compared to previous models based on the older M.A.P.S lamellar structure. The clever arrangement of the cooling fins allows the usage of an additional pair of fins without suffering negative effects to weight or height of the heatsink and optimises the cooling power in the lower speed range of the supplied fan.

Glide Stream 120 mm PWM Fan

The enclosed 120mm fan comes from the Glide-Stream PWM series. This new model offers the ability to adjust the maximum fan speed in 3 settings via a slide switch, allowing the user to choose between extremely quiet operation or maximum cooling power.

Flexible Fan Mounting

Inspired by his predecessors, the Ninja 4 offers the option to install a fan on all four sides of the heatsink. This allows for very effective integration into air flow of the case. To further increase the performance, a second fan can be installed by using the included additional pair of fan clips.

User-friendly Installation System

The proven HPMS (Hyper Precision Mounting System) mounting system is also to be found in Ninja 4. The mounting of the cooler is much easier. It requires fewer installation steps and time without compromising reliability.

SpecificationsNinja 4
Model numberSCNJ-4000
CompatibilityIntel Socket LGA775, LGA1150, LGA1155, LGA1156, LGA1366, LGA2011 / 2011-v3 (Square ILM)
AMD Socket AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ *
Overall dimensions130 x 153 x 155 (excluding fan)
Weight780g (excluding fan)
AccessoriesInstallation kit for Intel and AMD Socket, thermal grease, second pair of fan clips and installation manual
Base plate materialNickel-plated copper
Fan Specifications-
ModelSY1225HB1212H-PS (3 operations modes H/M/L)
Fan dimensions120 x 120 x 25 mm
Noise Levels (dBA)Low 4.0 ~ 12.5, Med 4.0 ~ 23.5, High 4.0 ~ 29.5
Air Flow (CFM)Low 13.0 ~ 43.5, Med 13.0 ~ 63.7, High 13.0 ~ 84.6
Fan Speed (±10%) RPM Low 300 ~ 800, Med 300 ~ 1150, High 300 ~ 1500
Voltage / AmperageDC 12V / 0,22A
Static Pressure (mmH2O)Low 0.07 ~ 0.50, Med 0.07 ~ 1.06, High 0.07 ~ 1.79
Bearing TypeSleeve Bearing
Warranty24 months
EAN barcode4571225055459
  • *Original AMD backplate required

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