Diablo is the series that introduced the concept of socketable items, so it shouldn’t be too surprising that the feature is also present in the latest entry. Diablo 4 uses a more streamlined and simplistic version of the feature compared to some of its predecessors, but sockets continue to have a big impact on progression regardless.
Diablo 4: How To Add Sockets To Gear
Sockets work a bit differently in Diablo 4 compared to its predecessors, but their main purpose is still to enhance your gear.