Hardware Spec Index

Zephyra CL-4921 XT 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL4921-XT · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index925 (CPU Coolers scale)
Category rank#35,479
Street price$29
Power12 W
Performance per dollar31.90
Released2021

Specifications

BrandZephyra
ModelZephyra CL-4921 XT
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 27 mm thick
Fans2× 120 mm, up to 1,500 RPM
Pump3,000 RPM
Rated cooling250 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Zephyra CL-2747 Max Single tower Air CPU Cooler1,903$119Compare
Teralux CL-7708 Pro Low profile Air CPU Cooler627$19Compare
Zephyra CL-6293 Plus 360mm AIO Liquid CPU Cooler1,801$99Compare
Caldera CL-5099 Pro 240mm AIO Liquid CPU Cooler901$29Compare
Zephyra CL-9555 SE Single tower Air CPU Cooler1,473$79Compare
Brontix CL-1605 XT 360mm AIO Liquid CPU Cooler1,688$99Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-4921 XT 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/8423344 (accessed 2026-10-21).