Matter clusters

A cluster is one building block of a Matter device: switching something on and off, setting a colour, measuring a temperature, locking a door. Each Matter device type, such as a plug or a thermostat, is a set of clusters, and a cluster can have optional features of its own.

Here is every cluster, in groups, with how many products in the catalogue are of a device type that requires it. That is the specification's requirement for the type. The CSA does not publish which clusters a particular product implements, so a count is never a count of products known to implement a cluster.