In Token Ring networks, A Lobe Attachment Module is a box with multiple interfaces to which new network nodes (known as lobes) can be attached.
Functionally a LAM is like a multi-station access unit (MAU), but with a larger capacity: 20 nodes as opposed to 8 nodes for MAU.
The LAM interface may use either IBM connectors or 8P8C (RJ-45) modular plugs.
LAMs can be daisy chained and connected to a HUB, known as Controlled Access Unit (CAU) in Token Ring terminology.
Each CAU can handle up to 4 LAMs for a total of 80 lobes.