Hardware Spec Index

Zephyra CL-6921 Ultra Single tower Air CPU Cooler

CPU Coolers · Zephyra · SKU CL6921-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,034 (CPU Coolers scale)
Category rank#18,046
Street price$39
Power3 W
Performance per dollar26.51
Released2021

Specifications

BrandZephyra
ModelZephyra CL-6921 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height157 mm
Fans1× 120 mm PWM, up to 1,900 RPM
Rated cooling180 W (manufacturer rating)
Noise23 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-6921 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/5162437 (accessed 2026-10-19).