Hardware Spec Index

Zephyra CL-1838 Ultra 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL1838-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index774 (CPU Coolers scale)
Category rank#39,117
Street price$19
Power12 W
Performance per dollar40.74
Released2025

Specifications

BrandZephyra
ModelZephyra CL-1838 Ultra
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 38 mm thick
Fans2× 120 mm, up to 2,400 RPM
Pump3,100 RPM
Rated cooling250 W (manufacturer rating)
Noise29 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 SocketIntel LGA1851 Socket

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Cite this page: Hardware Spec Index, “Zephyra CL-1838 Ultra 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/10246433 (accessed 2026-10-19).