Haywards DBTB0428B2G 40mm 12V 12W 4-pin fan video accessory

40 mm 12 V axial fan for tight builds

This 40 mm axial fan runs on 12 V DC and draws up to 12 W through a 4-pin PWM connector. It suits compact chassis or small-form-factor heatsinks where a standard 80 mm or 120 mm unit will not fit. The double ball bearing and 70 000-hour rated life target builders who need long-term reliability in constrained spaces.

Fits 40×40×28 mm mounts with 4-wire PWM control

The frame measures 40×40×28 mm and uses a 4-wire interface that supports PWM intelligent temperature control and speed reporting. It operates between 7.0 V and 13.4 V, so it can run from standard 12 V headers or fan controllers without extra adapters. The plastic housing keeps weight low for vibration-sensitive mounts.

Moves 19.4 CFM at up to 18 000 RPM with 54 dB noise

At full speed the fan delivers 19.4 CFM airflow, enough for concentrated spot cooling on VRM heatsinks, GPU backplates or small CPU coolers. The 54 dB acoustic level and 18 000 RPM ceiling mean it is not suited for silent desktop builds or noise-sensitive environments. Buyers who need quieter operation or higher static pressure for dense radiators should look elsewhere.