Laboratory instrument for working on laboratory samples, comprising a working chamber (2; 202) for housing the laboratory samples, a treatment apparatus being configured to provide at least a predetermined or user defined temperature within the working chamber, a network interface apparatus for providing a network connection capable of exchanging data for at least one network instrument (20; 20', 220), when the same is arranged and installed in an installed position inside the working chamber (2; 202), the network interface apparatus comprising • a communication apparatus (60; 260) being arranged outside the working chamber and providing the network connection, and • a connector apparatus (30; 230) including multiple first connectors (31; 231) mounted to a base body of the connector apparatus, each first connector configured for connecting with a network instrument, each first connector being arranged facing the inside of the working chamber and being connected with the communication apparatus for allowing the data exchange, wherein the working chamber is formed by at least one chamber wall (2a; 2b; 2c; 2d) surrounding the inside of the working chamber, and the at least one chamber wall comprises at least one duct (2e; 202e) for connecting the multiple first connectors (31; 231) with the communication apparatus (60; 261), thereby allowing the data exchange along the at least one duct through the at least one chamber wall. a working chamber (2; 202) for housing the laboratory samples, a treatment apparatus being configured to provide at least a predetermined or user defined temperature within the working chamber, a network interface apparatus for providing a network connection capable of exchanging data for at least one network instrument (20; 20', 220), when the same is arranged and installed in an installed position inside the working chamber (2; 202), the network interface apparatus comprising • a communication apparatus (60; 260) being arranged outside the working chamber and providing the network connection, and • a connector apparatus (30; 230) including multiple first connectors (31; 231) mounted to a base body of the connector apparatus, each first connector configured for connecting with a network instrument, each first connector being arranged facing the inside of the working chamber and being connected with the communication apparatus for allowing the data exchange, • a communication apparatus (60; 260) being arranged outside the working chamber and providing the network connection, and • a connector apparatus (30; 230) including multiple first connectors (31; 231) mounted to a base body of the connector apparatus, each first connector configured for connecting with a network instrument, each first connector being arranged facing the inside of the working chamber and being connected with the communication apparatus for allowing the data exchange, wherein the working chamber is formed by at least one chamber wall (2a; 2b; 2c; 2d) surrounding the inside of the working chamber, and the at least one chamber wall comprises at least one duct (2e; 202e) for connecting the multiple first connectors (31; 231) with the communication apparatus (60; 261), thereby allowing the data exchange along the at least one duct through the at least one chamber wall.