Product packaging: very good, relatively complete, although there are bumps,Appearance: very beautiful, black and white,Convenient installation: with a package of screws,Mute effect: review againAir volume and wind force: reappraisal after useHeat dissipation effect: review after useNo matter what, after constant urging, it finally arrived after a strange process of twists and turns.In the final analysis, look at the products and review them after use.