Abstract: A securing device for securing on a panel a jack, wherein the panel has a window, an outer side and an inner side. The device includes: a plate having a hole for inserting a plug therethrough from the outer side of the panel into the jack located on the inner side of said panel; and an engaging means including two pieces extruding from one side of the plate, having thereon tenons respectively for positioning and securing the engaging means and the plate on the windows of the panel, and slots for engaging therein the at least one barb of the jack to secure the jack.