Review on 120mm Silent Fan for Computer Cases, Mining Rig, CPU Coolers | Long Life Bearing | Excellent Ventilation | Kingwin Black CF-012LB by Matt Morgan

Bought 2 of these fans, installed one of them 3 weeks ago and the fan started to run weak and slow but eventually started spinning on its own. The second installs but won't start. Tried all my fan heads, then outer head and nothing, no rotation. I gave him a little nudge and with some support he turned around on his own for a while and then finally stopped. Update 12/19/20: When contacting the supplier I didn't receive anything from them - I build a lot of computers and unfortunately won't be using Kingwin. Product again and cannot recommend it.