Siemens PLCs SIMATIC S7-1500 CPU 1511-1 PN 6ES7511-1AK02-0AB0 - United Automation
New Industrial 6es7511-1ak02-0ab0 Original Genuine CPU 1511-1 Pn Model with Working Memory 150 Kb for Program and 1 MB for Data - China PLC, PLC Controller | Made-in-China.com