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Compact silver aluminium radial-fin heatsink with centred 77 mm fan, 62 mm tall

Dynatron

Dynatron R9 77mm 2 Ball CPU Cooler LGA 2011 62mm height

SKU CH-ZRKB-D0E6H MPN R9

Low-profile 77 mm dual-ball-bearing cooler with copper-insert aluminium heatsink fits LGA 2011 sockets in 62 mm height

  • TypeFan & Heatsinks
  • Fan Size77mm
  • CPU Socket CompatibilityIntel LGA 2011 (Square Type)
  • Bearing Type2 Ball
  • RPMAt Duty Cycle 20%: 1000 RPM At Duty Cycle 50%: 2500 RPM At D
  • Air FlowAt Duty Cycle 20%: 10.12 CFM At Duty Cycle 50%: 25.30 CFM At
  • Quiet operation at low load with 13.14 dBA at 20% duty cycle
  • Strong airflow when needed reaching 45.56 CFM at 100% duty cycle
  • Durable 2 Ball bearing fan rated for continuous high speed use
  • Compact 62 mm height fits tight server and workstation chassis
  • Copper inserted aluminium heatsink improves heat transfer for Intel LGA 2011 CPUs

LGA 2011 low-profile air cooler

The Dynatron R9 is a compact CPU air cooler built for Intel LGA 2011 square-type sockets. It targets system builders who need to cool Sandy Bridge EP and EX processors inside space-constrained chassis where taller towers cannot fit. The unit ships new and weighs 1.08 lbs.

62 mm height frees upper motherboard zones

A 62 mm overall height clears the area above the socket for tall memory modules or voltage-regulator heatsinks. The 77 mm fan mounts vertically on an aluminium extruded radial fin stack with a copper insert, drawing air through the fins and exhausting it toward the rear of the case. A standard 4-pin PWM connector allows the motherboard to regulate speed automatically.

Dual-ball bearing sustains 4500 RPM under load

At a 20 % duty cycle the fan spins at 1000 RPM, moving 10.12 CFM at 13.14 dBA. At 50 % it reaches 2500 RPM for 25.30 CFM at 33.04 dBA. At 100 % duty cycle the speed rises to 4500 RPM, delivering 45.56 CFM while the noise level reaches 45.9 dBA, showing how the cooler behaves when the CPU maintains a heavy thermal load.

Highlights

  • Quiet operation at low load with 13.14 dBA at 20% duty cycle
  • Strong airflow when needed reaching 45.56 CFM at 100% duty cycle
  • Durable 2 Ball bearing fan rated for continuous high speed use
  • Compact 62 mm height fits tight server and workstation chassis
  • Copper inserted aluminium heatsink improves heat transfer for Intel LGA 2011 CPUs

Specifications

BrandDynatron
ModelR9
TypeFan & Heatsinks
Fan Size77mm
CPU Socket CompatibilityIntel LGA 2011 (Square Type)
Bearing Type2 Ball
RPMAt Duty Cycle 20%: 1000 RPM
At Duty Cycle 50%: 2500 RPM
At Duty Cycle 100%: 4500 RPM
Air FlowAt Duty Cycle 20%: 10.12 CFM
At Duty Cycle 50%: 25.30 CFM
At Duty Cycle 100%: 45.56 CFM
Noise LevelAt Duty Cycle 20%: 13.14 dBA
At Duty Cycle 50%: 33.04 dBA
At Duty Cycle 100%: 45.9 dBA
Power Connector4 Pin
Heatsink MaterialAluminum Extruded Radial Fin Heatsink with Copper Inserted
Fan Mounting Types to HeatsinkVertical
Max CPU Cooler Height62 mm
Fan Dimensions77 x 77 x 20 mm
Heatsink Dimensions90.0 x 90.0 x 62.0 mm (Overall)
Weight1.08 lbs.
FeaturesCPU Support: Intel Sandy Bridge EP / EX Processors
Shipping weight0.51 kg
Package size112 × 112 × 94 mm

Questions about this item

How loud is the fan when running at full 4500 RPM all day?

At 100% duty cycle the fan produces 45.9 dBA while moving 45.56 CFM, so sustained full-speed operation is audible in a quiet room.

What thermal limit appears first during continuous load?

The aluminum extruded radial fin heatsink with copper insert and 45.56 CFM maximum airflow define the cooling ceiling before temperatures rise.

Which motherboard socket must I already have for this cooler to fit?

It mounts only on Intel LGA 2011 (Square Type) sockets and supports Sandy Bridge EP/EX processors.

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