Seasonic MagFlow 3-Fan Kit Computer case 12 cm Black 3 pc(s) - SF-12025MF-P

Seasonic MagFlow 3-Fan Kit is a set of three 120 mm case and radiator fans aimed at more meaningful, clean, and controllable airflow configurations. They operate in the range 600 – 2000 RPM, so they comfortably cover both quiet idle and aggressive cooling under load. They achieve up to 63.33 CFM airflow and 2.61 mm H₂O static pressure, making them suitable for both mesh front and dense radiators. They do not have RGB, so the focus is entirely on efficiency, noise, and reliability.

What you get
The three fans with Fluid Dynamic Bearing (FDB) bearings offer long life and more stable operation at high speeds, with an MTBF of 100000 hours. Thanks to PWM control via a 4-pin connector, you can calibrate the fan curves so that they drop to quiet 9.9 dB(A) at low speeds and ramp up to around 33.78 dB(A) when you need powerful cooling. The 9 blades and the pressure of 2.61 mm H₂O help for good performance behind filters, in front of dense panels, or on radiators, where cheap fans often struggle. The included power and extension cables give you flexibility in routing, while the fan-to-fan cable facilitates a tidy build without cable chaos.

• Set of 3 × 120 mm fans, sufficient for a full front intake or a complete 360 mm radiator.
• Fluid Dynamic Bearing (FDB) bearing for lower noise and longer life with an MTBF of 100000 h.
• Wide range of 600 – 2000 ±10% RPM for quiet operation at idle and aggressive cooling under load.
• Airflow up to 63.33 CFM and static pressure 2.61 mm H₂O, suitable for both case and radiator configurations.
• Low to moderate noise from 9.9 – 33.78 dB(A), precisely controlled via PWM management.
• Fan 4-pin PWM connectors plus 3 × power cable, 3 × PWM extension, and 1 × fan-to-fan cable for clean cable management.
• No RGB lighting, black design, and a weight of about 212.7 g per fan for a cleaner, functional build.

Who it is suitable for
This kit is for you if you want stable cooling for a case or radiator with a focus on airflow and noise, rather than on lighting effects. It is suitable for gaming and workstation builds where you seek a meaningful balance between temperature and acoustics, with full control via PWM. If you are aiming for an entirely “Christmas tree” setup with RGB show, this is not the right choice.

The most meaningful aspect here is the combination of FDB bearing, serious airflow, and PWM flexibility in a package of three fans with the necessary cables and accessories. With the MagFlow 3-Fan Kit, you can easily arrange your cooling to be both clean, quiet, and effective.