Stackable switch

The term stack refers to the group of switches that have been set up in this way.

Stackable switches are customarily Ethernet, rack-mounted, managed switches of 1–2 rack unit (RU) in size, with a fixed set of data ports on the front.

Some models have slots for optional slide-in modules to add ports or features to the base stackable unit.

Some companies call their switches stackable if they support a single IP address for multiple units even if they lack other features from this list.

have said a product is not a stackable if it lacks one of the above features (e.g., dedicated bandwidth).