noctua nh-u9dxi4 90mm sso2 cpu cooler

type fan & heatsinks fan size 90mm cpu socket compatibility intel lga 2066 / 2011-0 & 2011-3 (square ilm & narrow ilm) / 1356 / 1366 (with xeon backplate) bearing type sso2 rpm 1600 rpm +/-10% (max) 1300 rpm +/-10% w/ l.n.a 300 rpm +/-10% (pwm) air flow 37.85 cfm w/o l.n.a 30.96 cfm w/ l.n.a noise level 17.6 db(a) w/o l.n.a 13.1 db(a) w/ l.n.a heatsink material aluminum fan mounting types to heatsink horizontal