good product overall good finish, U2 model can be a bit tight for a PC 17 "but it'll même.Ventilateurs when positioned next vents instead of pc.Attention anyway, if the PC ventilation grilles are too far to the front, the fan can not be positioned too far forward of reffroidisseur because the shape of it çi, on a slope and thickness of about 1 cm fans, will be that it is the fans and either the pads of the grid which then hit the office .I am satisfied with this product that is effective for improving the cooling fan my laptop.