Hardware Spec Index

Zephyra CL-4821 SE 280mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4821-SE · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index1,422 (CPU Coolers scale)
Category rank#20,963
Street price$59
Power13 W
Performance per dollar24.10
Released2023

Specifications

BrandZephyra
ModelZephyra CL-4821 SE
TypeAll-in-one liquid cooler
Radiator280 mm, aluminum, 30 mm thick
Fans2× 140 mm, up to 1,600 RPM
Pump2,900 RPM
Rated cooling280 W (manufacturer rating)
Noise31 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Zephyra CL-4821 SE 280mm AIO Liquid CPU Cooler”, https://vextor7.com/item/41317258 (accessed 2026-10-23).