The load on the motherboard is distributed over a larger area and the mechanical pressure is reduced. As a result, among other things, improved temperatures can be achieved.

With this massive backplate, the Watercool HEATKILLER IV can be made compatible with the new Intel Alder-Lake Socket 1700. 

Technical details:
Contents: Stainless steel backplate
Compatibility: Watercool HEATKILLER IV CPU Cooler, Intel 1700