et un Acousti Products Dust Proof 70mm Quiet Computer Fan
Fan Start at 5V DC? Yes
Connector Type 3-pin (from m'board), OR 4-pin (from PSU)
using 3-Speed Fan Cable
Life Expectancy (at 25°C) 60,000hrs (6.85yrs)
Included Accessories 3-Speed Fan Cable, 4 x Tie Wraps & 4 x Screws
Full Speed (12VDC)
Air Volume Throughput CFM ±10% 21.9
Acoustic Performance (DIN45635 @1m) dBA 20.0
Fan Speed RPM** ±10% 2,500
Medium Speed (approx. 7.5VDC)
Air Volume Throughput CFM ±10% 14.0
Acoustic Performance (DIN45635 @1m) dBA 10.5
Fan Speed RPM** ±10% 1,750
Low Speed (5VDC)
Air Volume Throughput CFM ±10% 9.1
Acoustic Performance (DIN45635 @1m) dBA 10
Fan Speed RPM** ±10% 1,150
http://www.acousticpc.com/acoustip [...] f_fan.html
ou la
http://www.acoustiproducts.com/en/ [...] tproof.asp
ce dernier me semble etre le mieux