This lot includes one (1) Siemens 6ES7-138-4CA01-0AA0 module and four (4) Siemens 6ES7-138-4FA05-0AB0 modules, both of which are designed for industrial automation and process control applications. These used Siemens ET 200S distributed I/O modules ensure reliable communication and efficient signal processing within Siemens S7-300 and S7-400 PLC systems.