Hardware Spec Index

Caldera CL-8421 XT 240mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL8421-XT · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index839 (CPU Coolers scale)
Category rank#22,461
Street price$29
Power12 W
Performance per dollar28.93
Released2024

Specifications

BrandCaldera
ModelCaldera CL-8421 XT
TypeAll-in-one liquid cooler
Radiator240 mm, aluminum, 30 mm thick
Fans2× 120 mm, up to 2,200 RPM
Pump3,000 RPM
Rated cooling250 W (manufacturer rating)
Noise24 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power ExplainedAMD AM5 SocketIntel LGA1851 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-6767 Ultra 360mm AIO Liquid CPU Cooler2,009$109Compare
Caldera CL-6864 Core Dual tower Air CPU Cooler1,661$79Compare
Teralux CL-5119 Pro 360mm AIO Liquid CPU Cooler1,223$49Compare
Caldera CL-4853 Max Low profile Air CPU Cooler824$29Compare
Brontix CL-3139 XT Dual tower Air CPU Cooler2,181$149Compare
Brontix CL-1278 Plus Dual tower Air CPU Cooler1,540$89Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-8421 XT 240mm AIO Liquid CPU Cooler”, https://vextor7.com/item/6607568 (accessed 2026-10-21).