The AM5 Short Backplate is a shortened mounting plate that replaces the original AM5 backplate. Some socket AM4 compatible CPU coolers use a custom retention kit for mounting. Since the AM4 backplate is primarily used to mount coolers, omitting this backplate is generally not a problem. With Socket AM5, however, the Socket Actuation Mechanism (SAM) is also screwed onto the backplate and cannot simply be left out. In order to use an AM4-compatible cooler with a custom retention kit, you need an alternative mount for the mainboard's SAM. This is exactly where the AM5 Short Backplate comes into play and serves as a mounting plate for the mainboard's SAM. This extends the cooler compatibility to a variety of CPU coolers. To protect against short circuits, the anodized aluminum plate is additionally covered with an insulating layer of polycarbonate. Compatible with AM5 motherboards Increased compatibility with CPU coolers Easy construction Anodized aluminum with insulation layer