We resell Siemens Profinet Connector, Price is 10%-30% cheaper than other suppliers, just contact us for more info.6GK1901-1BB10-2AA06GK1901-1BB10-2AB06GK1901-1BB11-2AA06GK1901-1BB20-2AA06GK1901-1BB30-0AA06GK1901-0DB20-6AA0We produce these substitute S7-200,300,Profibus Products.>>>>Can be produced with your brand and model number.<<<<