This set comes with the modules listed below as a bundle, each with their corresponding Article Number for more info:

Siemens SIMATIC S7-200 CPU

Article number - 6ES7 214-1AD23-0XB0

2 Large Siemens Digital I/O’s

Article number - 6ES7 223-1BL22-0XA0

2 Small Siemens Digital I/O’s

Article number - 6ES7 221-1BH22-0XA0