Hardware Spec Index

Zephyra CL-9821 XT 240mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL9821-XT · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index558 (CPU Coolers scale)
Category rank#17,671
Street price$19
Power12 W
Performance per dollar29.37
Released2021

Specifications

BrandZephyra
ModelZephyra CL-9821 XT
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 30 mm thick
Fans2× 120 mm, up to 2,500 RPM
Pump3,100 RPM
Rated cooling250 W (manufacturer rating)
Noise32 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-5649 Ultra Low profile Air CPU Cooler827$29Compare
Zephyra CL-6476 Plus Dual tower Air CPU Cooler2,238$179Compare
Brontix CL-4709 XT Single tower Air CPU Cooler1,935$119Compare
Caldera CL-1512 Edge 420mm AIO Liquid CPU Cooler2,063$159Compare
Brontix CL-3992 XT 420mm AIO Liquid CPU Cooler2,480$169Compare
Brontix CL-5209 Prime Single tower Air CPU Cooler1,641$89Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-9821 XT 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/9863403 (accessed 2026-10-20).