Digi Connect EZ 4 TS is a modern, secure 4-port serial device server with software-selectable RS-232/422/485 on every port. It modernizes how organizations talk to existing serial equipment, connecting automation, robotics control, data acquisition, point-of-sale and centralized device-management systems over IP networks. It boots in seconds, configures in minutes and is built to run for years. Engineered as an efficient transition upgrade for legacy Digi ConnectPort TS and Digi PortServer TS devices, Digi Connect EZ 4 TS preserves the same mechanical footprint, RJ-45 serial pinout and Digi RealPort workflows while delivering the full Digi Connect EZ platform including Digi TrustFence security, a built-in Python environment, and management through Digi Remote Manager or Digi On-Prem Manager.