Hardware Spec Index

Zephyra CL-1923 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL1923-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index2,419 (CPU Coolers scale)
Category rank#19,712
Street price$199
Power17 W
Performance per dollar12.16
Released2023

Specifications

BrandZephyra
ModelZephyra CL-1923 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,800 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise28 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-7351 Max 280mm AIO Liquid CPU Cooler1,245$39Compare
Zephyra CL-7940 SE 240mm AIO Liquid CPU Cooler1,060$39Compare
Caldera CL-5686 Max 240mm AIO Liquid CPU Cooler914$29Compare
Brontix CL-2168 Edge 360mm AIO Liquid CPU Cooler1,624$99Compare
Teralux CL-4618 Ti Low profile Air CPU Cooler806$19Compare
Brontix CL-1618 XT 240mm AIO Liquid CPU Cooler600$19Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-1923 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/2931607 (accessed 2026-10-20).