Hardware Spec Index

Zephyra CL-4638 Ultra Dual tower Air CPU Cooler

CPU Coolers · Zephyra · SKU CL4638-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index1,953 (CPU Coolers scale)
Category rank#20,439
Street price$129
Power6 W
Performance per dollar15.14
Released2019

Specifications

BrandZephyra
ModelZephyra CL-4638 Ultra
TypeDual tower air cooler
Heat pipes8× 6 mm copper
Height166 mm
Fans2× 120 mm PWM, up to 2,200 RPM
Rated cooling280 W (manufacturer rating)
Noise30 dBA (max)
RAM clearanceOffset fin stack, 45 mm
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-4638 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/5198 (accessed 2026-10-19).