The E44C/180 is a fully copper skived heatsink which is actively cooled by a thin squirrel cage fan that rests on top. The entire heatsink measures 28mm in height, and fits into a standard socket 478 wire-clip retention frame.
These types of retention frames were popular with the socket 423 Pentium 4 processors for a while, and have now been retasked to 1U requirements. The CoolJag E44C/180 is available through SelectCool.
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