Brontix CL-3903 Pro 420mm AIO Liquid CPU Cooler
CPU Coolers · Brontix · SKU CL3903-PRO · Released 2019 · Updated 2026-10-22
Key facts
| Benchmark index | 2,254 (CPU Coolers scale) |
|---|---|
| Category rank | #15,169 |
| Street price | $149 |
| Power | 17 W |
| Performance per dollar | 15.13 |
| Released | 2019 |
Specifications
| Brand | Brontix |
|---|---|
| Model | Brontix CL-3903 Pro |
| Type | All-in-one liquid cooler |
| Radiator | 420 mm, aluminum, 27 mm thick |
| Fans | 3× 140 mm, up to 1,800 RPM |
| Pump | 2,800 RPM |
| Rated cooling | 330 W (manufacturer rating) |
| Noise | 28 dBA (max) |
| Tubing | 400 mm, sleeved EPDM |
| Socket support | AM4, LGA1700, LGA1200, LGA115x |
| Warranty | 5 years |
Related guides
Similar CPU Coolers
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Zephyra CL-5470 Edge Dual tower Air CPU Cooler | 2,344 | $179 | Compare |
| Brontix CL-7371 Plus 360mm AIO Liquid CPU Cooler | 1,754 | $99 | Compare |
| Caldera CL-4911 Ti 420mm AIO Liquid CPU Cooler | 2,376 | $199 | Compare |
| Zephyra CL-8157 Ti Dual tower Air CPU Cooler | 1,906 | $119 | Compare |
| Brontix CL-2588 SE 420mm AIO Liquid CPU Cooler | 1,908 | $129 | Compare |
| Zephyra CL-5258 Plus 280mm AIO Liquid CPU Cooler | 1,849 | $109 | Compare |
Cite this page: Hardware Spec Index, “Brontix CL-3903 Pro 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/20135820 (accessed 2026-10-22).