Hardware Spec Index

Zephyra CL-3870 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL3870-ULTRA · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index2,450 (CPU Coolers scale)
Category rank#4,117
Street price$179
Power17 W
Performance per dollar13.69
Released2025

Specifications

BrandZephyra
ModelZephyra CL-3870 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,900 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise24 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power ExplainedAMD AM5 SocketIntel LGA1851 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Zephyra CL-9532 XT Dual tower Air CPU Cooler2,130$149Compare
Teralux CL-4039 Ti 420mm AIO Liquid CPU Cooler2,457$169Compare
Brontix CL-5431 Ultra 360mm AIO Liquid CPU Cooler1,745$109Compare
Zephyra CL-2783 Pro 360mm AIO Liquid CPU Cooler2,249$179Compare
Caldera CL-1916 Pro 360mm AIO Liquid CPU Cooler1,259$59Compare
Zephyra CL-9961 Pro Low profile Air CPU Cooler921$29Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-3870 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/7540106 (accessed 2026-10-22).