140×140×25 mm fan with AAO frame, SSO2 bearing and A‑Series flow‑acceleration blades. 1500 RPM (300 RPM min @20% PWM), 140.2 m³/h airflow, 24.6 dB(A) noise, 2.08 mm H₂O static pressure. 5 V 4‑pin PWM, 30 cm extension, anti‑vibration, MTTF >150k h.
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