Hardware Spec Index

Caldera CL-9891 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL9891-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index806 (CPU Coolers scale)
Category rank#33,662
Street price$29
Power12 W
Performance per dollar27.79
Released2020

Specifications

BrandCaldera
ModelCaldera CL-9891 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 1,600 RPM
Pump3,000 RPM
Rated cooling250 W (manufacturer rating)
Noise28 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-9891 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/95026783 (accessed 2026-10-20).