The H80i, depicted above, is a single 120mm radiator design, which however is nearly twice as thick as the lower-performance H55 and H60 models. Corsair is using thick but flexible rubber tubing rather than corrugated plastic tubes, which can turn easily and without kinking.
The radiator of the H80i is virtually identical to the radiator we have encountered while reviewing the H55 and H60; just over twice as thick. The quality of the radiator is very good for such a product and the body feels solid.
As seen in the above picture, the radiator is a classic heat exchanger design, with arrays of wavy aluminum fins soldered on thin copper liquid tubes. The aluminum fins are thin and flimsy, which is a minor drawback of this design, so the radiator should always be handled by its body.
The square core assembly includes the copper water block, the low-profile liquid pump and the Corsair Link electronics/sensors. The top of the core assembly is plastic, in piano black color, with the company logo printed right in the middle of the cover. Although the pumps of older kits were powered by the 3-pin fan header of the motherboard, the H80i requires power from a SATA connector, yet still provides a 3-pin fan header solely for the monitoring of the pump’s speed by the motherboard and prevent boot issues.
The copper water block is simple and flat, with the thermal grease pre-applied. While it is well-machined, the copper has not been polished too well, which might displease some hardcore enthusiasts, which are likely to finish the job themselves.