No, unfortunately only the Roku Ultra series have an ethernet port (RJ45 connection) among the modern line of Roku devices. The Roku Express series, the Premieres series, and the Streaming Sticks are all wireless.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102