The AM5 Short Backplate is an optional mounting plate that replaces the original AM5 backplate. To use a custom retention kit, you need an alternative mount for the Socket Actuation Mechanism (SAM) of the motherboard. The AM5 Short Backplate is perfect for this purpose.
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.
However, with the AM5 socket, the Socket Actuation Mechanism (SAM) is also screwed on via the backplate and cannot simply be omitted. In order to use an AM4-compatible cooler with a custom retention kit, you need an alternative holder for the mainboard's SAM.
This is 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 wide range of CPU coolers. To protect against short circuits, the anodised aluminium plate is additionally covered with an insulating layer of polycarbonate.
