Speed can be adjusted manually with a control dial mounted on a PC backplate
 
9.2cm PaxPower Ultra Quiet Amber fan
 
 
AK-862 AMBER SERIES COOLER
Designed for Socket 754, 939 & 940
AMD Athlon 64, FX-53, Sempron & Opteron.

PaxPower Ultra Quiet Amber Series AK-862 is new cooler for AMD Opteron, Athlon 64, Athlon 64 FX51-53 and Sempron 3100+. Twin ball bearing ensures the reliability and long life of the fan. The PC backplate manual speed control on PC backplate controls the speed and the cooling function that optimises thermal performance. 3 point steel cam-level clip is used for safe retention. AK-862 9.2cm fan is a brilliant cooler that can be used to build both a quiet and an overclocked PC.
9.2cm PaxPower Ultra Quiet Amber fan
Reliable and long life twin ball bearing fan
Manual speed control on PC backplate
2 x 3 point cam-lever steel clip enables safe retention
AK-450 hi-performance thermal interface pre-applied
  Socket type   AMD Socket 754, 939, 940 & AM2
  Heatsink dimension   90 x 90 x 45mm
  Heatsink material   AL-6063-T5
  Fan dimension   92 x 92 x 25mm
  Fan speed   1700 - 3100 R.P.M.
  Fan airflow   37.0 - 66.3 CFM
  Fan air pressure   1.4 - 3.7mm H20
  Fan life expectancy   75000/hrs
  Bearing type   Twin Ball Bearing
  Voltage rating   12V
  Noise level   24.5 - 40.0 dB(A)
  Product code   AK-862
PC Backplate for speed control
Manual Installation
Installation Manual
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PC Inpact (French)

"Prix, installation, & discrétion." more..

Custom PC

"The AK862's excellent performance is due to its giant 92mm fan. It can be used to build both a quiet and overclocked PC." more..

Xtreme computing

"Low cost, large fan, fan speed controller, and better performance than stock cooler" more..
Nvnews.net

"Sufficient cooling performance, low price for a quality product, noise reduction ability with fan control panel, light weight, good performing low noise 92mm Akasa PaxPower fan supplied, easy installation, should provide sufficient mounting clearances with most motherboards, and heatsink will accept a variety of 92mm fans" more..
Mod-works.com (Polish)

"otrzymuje od nas odznaczenie cena/jakosc" more..

Extreme64.com

"As far as I am concerned, the best thing about this product is the fan and variable fan control. It allows you to run between 1500rpm (virtually silent) and 3000rpm (bearable noise) with only a minimal performance drop." more..