Hardware Spec Index

Caldera CL-1844 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL1844-ULTRA · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index2,320 (CPU Coolers scale)
Category rank#31,916
Street price$159
Power17 W
Performance per dollar14.59
Released2021

Specifications

BrandCaldera
ModelCaldera CL-1844 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 1,600 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise26 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

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Cite this page: Hardware Spec Index, “Caldera CL-1844 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/85387 (accessed 2026-10-18).