Hardware Spec Index

Caldera CL-3748 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL3748-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index965 (CPU Coolers scale)
Category rank#42,599
Street price$29
Power12 W
Performance per dollar33.28
Released2021

Specifications

BrandCaldera
ModelCaldera CL-3748 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 1,900 RPM
Pump2,900 RPM
Rated cooling250 W (manufacturer rating)
Noise34 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-3748 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/32937457 (accessed 2026-10-25).