Hardware Spec Index

Zephyra CL-8521 Ultra 360mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL8521-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,914 (CPU Coolers scale)
Category rank#42,547
Street price$139
Power15 W
Performance per dollar13.77
Released2021

Specifications

BrandZephyra
ModelZephyra CL-8521 Ultra
TypeAll-in-one liquid cooler
Radiator360 mm, aluminum, 30 mm thick
Fans3× 120 mm, up to 1,600 RPM
Pump2,900 RPM
Rated cooling300 W (manufacturer rating)
Noise33 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-8521 Ultra 360mm AIO Liquid CPU Cooler”, https://vextor7.com/item/61678977 (accessed 2026-10-20).