Watercooling.de has had design and manufacturing input in several water blocks they've sold online over the past five years. My first introduction to German engineered water blocks was through this store when I tested the original CF1 Microstructure block and later with the “upgrade kit” compared it to popular USA system Dangr Den TDX vs. CF1 Rev.2. Watercooling.de's recent arrival has already received high praise from other testers, so today I test the new SUB-ZERO ExodusFlow Altauna, will it earn my “Brass O-Ring”?

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