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NEW VERSION!! Cooler Master Hyper 48 (KHC-L91-U2) ULTRA SILENT Heat Pipe CPU Cooler (For Socket 478/ 754/ 940/ 939/ LGA775)

View from manufacture

Cooler Master Hyper 48 CPU Cooler (KHC-L91-U1)

NEW VERSION: The new version of the Hyper 48 fully supports the PWM feature for the LGA775 CPU. This feature requires a 4 pin connector instead of 3 pin on standard motherboards. That is the only changed made to the Hyper 48.

Hyper 48 is built for high performance. This super silent CPU cooler, with heat-pipe technology, wicks heat away and replaces it with the cooling breeze of a 92mm ball bearing fan. Four copper pipes embedded in densely packed copper fins dissipate heat rapidly and efficiently. The powerful good looks and quiet operation of Hyper 48 supports the latest Prescott LGA775, Pentium 4 and AMD's K8.

Cooler Master Hyper 48 CPU Cooler (KHC-L91-U1)

  • Copper Stacking Fin & 4 Heat-pipes provide high conductivity and heat dissipation
  • Supports the newest Intel Prescott LGA 775, Intel Pentium 4 (Socket 478) and AMD K8 (Socket 754-939-940) series
  • High Air Flow 92mm Fan for high-volume airflow to increase cooling effect
  • Perfect Pin/Fin Rate adjust with 92mm fan, which creates better cooling but less noise
  • Special fan cover design centralizes the airflow to the core of heat spot
  • Perfect combination of strong clip force with high performance thermal grease, which provides super heat conductivity.
  • High performance Thermal Grease
  • Universal Retention Module
  • Safe back plate, insulation pasteboard and fan grill to protect user & system


Cooler Master Hyper 48 CPU Cooler (KHC-L91-U1)

Socket Type Socket 478/754/940/939/LGA775
Heat Sink Dimension 105x94x70 mm
Heat Sink Material 4 heat pipes+ Cu. stacked fins with Cu. base
Fan Dimension 92X92X25mm
Fan Speed 1400 - 3200 R.PM (Control by PWM)
Fan Air Flow 27.65 - 64.19 CFM
Fan Air Pressure 1.18 - 5.50mm H2O
Fan Life Expectance 50,000hrs
Bearing Type Rifle Bearing
Voltage Rating 12V
Noise Level 18.5dB
Connector 4 Pin(PWM) / 3 Pin (without PWM) (Foolproof Design)
Weight 864g
Thermal Resistance Rja 0.36 C/W
Application 1. Intel Celeron Processor (mPGA 478)
2. INtel Pentium 4 Processor (mPGA 478/ LGA775)
3. Intel Celeron D Processor (mPGA 478/ LGA775)
4. AMD Sempron Processor (Socket 754)
5.AMD Athlon 64 Processor (Socket 754/930/940)

dditional Information

Product Release Sheet: Cooler Master Hyper 48 CPU cooler

Installation Guide: Cooler Master Hyper 48 CPU Cooler

FAQ: Cooler Master Hyper 48 CPU Cooler

Fresh Demo: Cooler Master Hyper 48 CPU cooler

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