Allen Bradley 1756-OB16D is a ControlLogix DC diagnostic output module

Allen-Bradley 1756-OX8I is a ControlLogix Discrete output module which operate at a voltage category of 5 to 125VDC and 10 - 240 VAC. 

The Allen-Bradley 1756SC-IF8H HART Analog Input/Output Module

Allen Bradley 1756-PB72 FBM (Field Input/Output Module) sequential control, trapezoidal logic control

Allen-Bradley 1756-OA8E is a Discrete output module from the ControlLogix product family.

Allen Bradley 1756-OB16I The 1756-OB16I is a ControlLogix Discrete output module which operate at a voltage category of 12/24VDC in sinking or sourcing configuration.

Allen Bradley The 1756-M02AE/K module is a two-axis servo module for drives/actuators that need a + 10V velocity or torque reference. 

Allen Bradley 1756-SYNCH is a communication module that supports the SynchLink fiber-optic communication link for ControlLogix systems.

Allen Bradley  1756-L1 New ControlLogix Processor CPU PLC

Allen Bradley 1756-CNB In stock  Factory Sealed Plc Programming Controller Aluminum Connector

Allen Bradley 1756-OB32 is a ControlLogix Discrete output module which operate at a voltage category of 12 / 24VDC.

Allen Bradley 1756-EN2T  Ethernet I/P Communication Module IN stock