Hardware Spec Index

Zephyra CL-6547 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6547-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index2,092 (CPU Coolers scale)
Category rank#3,880
Street price$149
Power17 W
Performance per dollar14.04
Released2019

Specifications

BrandZephyra
ModelZephyra CL-6547 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 30 mm thick
Fans3× 140 mm, up to 1,800 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise29 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Teralux CL-8891 Prime Low profile Air CPU Cooler741$19Compare
Caldera CL-6710 SE 240mm AIO Liquid CPU Cooler741$19Compare
Zephyra CL-2987 Prime Single tower Air CPU Cooler635$19Compare
Teralux CL-9308 Plus Dual tower Air CPU Cooler1,815$109Compare
Brontix CL-6274 SE 280mm AIO Liquid CPU Cooler1,005$29Compare
Zephyra CL-8677 Core 280mm AIO Liquid CPU Cooler1,601$89Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-6547 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7680976 (accessed 2026-10-19).