Hardware Spec Index

Caldera CL-7921 Edge 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL7921-EDGE · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index1,998 (CPU Coolers scale)
Category rank#20,433
Street price$149
Power17 W
Performance per dollar13.41
Released2022

Specifications

BrandCaldera
ModelCaldera CL-7921 Edge
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise28 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-7921 Edge 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/18136802 (accessed 2026-10-20).