The KJ4001X1-NA1 12P3373X012 is a Horizontal LocalBus Dual Right Cable Extender module manufactured by Emerson. It is designed to extend the LocalBus communication network in the Emerson DeltaV system.

The LocalBus cable extender module allows for the expansion of the LocalBus network connections in the DeltaV system by providing additional communication ports. It is used to connect multiple DeltaV modules, such as controllers, I/O modules, and other devices, in a distributed control system configuration.

The 12P3373X012 cable extender module supports dual right connections, allowing for flexibility in system configuration and cable routing. It helps to extend the reach and increase the capacity of the LocalBus network, enabling efficient communication between various components of the DeltaV system.