Hardware Spec Index

Caldera CL-3991 Max 240mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL3991-MAX · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index694 (CPU Coolers scale)
Category rank#4,515
Street price$19
Power12 W
Performance per dollar36.53
Released2025

Specifications

BrandCaldera
ModelCaldera CL-3991 Max
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 30 mm thick
Fans2× 120 mm, up to 1,900 RPM
Pump3,300 RPM
Rated cooling250 W (manufacturer rating)
Noise31 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

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Cite this page: Hardware Spec Index, “Caldera CL-3991 Max 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/20206281 (accessed 2026-10-21).