Premium quiet fan, 80x80x25 mm, 12V, 3-pin Molex, 2000/1650/1200 RPM, max. 16.1 dB (A), >150, 000 h MTTF ^^ Award-winning 80x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance ^^ 8cm format is ideal for compact PC cases (HTPC, ITX, Small Form Factor) and other chassis (intake & exhaust), replacement fan for NAS and other devices, etc. ^^ 3-pin FLX version provides 2000/1650/1200rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation ^^ Includes anti-vibration mounts, fan screws, Low-Noise & Ultra-Low-Noise Adaptors, extension cable and 3:4 -pin adaptor for powering the fan directly from the power supply