Thermaltake CL-W281-CU00BL-A Pacific CLD240 Copper Radiator

The Thermaltake Pacific CLD240 (CL-W281-CU00BL-A) is a 240mm copper radiator built for enthusiast-grade custom liquid cooling systems. Its core design revolves around a double copper micro-fin array with a fin density of 25 fins per inch, paired with 12 sets of flat tubes that maximize the contact surface between coolant and fins. The brass tank and copper fin construction ensure high thermal conductivity, while stainless steel side panels reinforce the chassis without adding excessive weight. The entire assembly is joined using reflow soldering at 250°C, a process that creates more reliable, uniform connections than traditional methods.

With five G¼" thread ports — including one dedicated to coolant draining — the CLD240 offers flexible plumbing options for complex loop configurations. The 40mm radiator thickness strikes a balance between cooling capacity and case compatibility, though builders should verify clearance before committing. At 526.6mm long, 119mm wide, and weighing 1300g, this is a substantial component that pairs best with 120mm high-static pressure fans (sold separately) to push air through its dense fin stack. It is a purpose-built radiator for users who prioritize thermal performance and build quality in their custom cooling loops.