The AM5 Short Backplate is a shortened mounting plate that replaces the original AM5 backplate. Some CPU coolers compatible with the AM4 socket use a custom retention kit for mounting. Since the AM4 backplate is primarily used for mounting coolers, omitting this backplate is generally not a problem. With the AM5 socket, however, the Socket Actuation Mechanism (SAM) is also screwed onto the backplate and cannot simply be omitted. To use an AM4-compatible cooler with a custom retention kit, an alternative mount for the motherboard's SAM is required. This is where the AM5 Short Backplate comes into play, serving as a mounting plate for the motherboard's SAM. This extends cooler compatibility to a wide range of CPU coolers. To protect against short circuits, the anodised aluminium plate is additionally coated with an insulating layer of polycarbonate.