Network Adapters - Digi International Inc. Compatible Computer Devices

Description extracted from Wikipedia:

Digi International is an American Industrial Internet of Things (IIoT) technology company headquartered in Hopkins, Minnesota. The company was founded in 1985 as DigiBoard and went public as Digi International in 1989. The company initially offered intelligent ISA/PCI boards (the 'DigiBoard') with multiple asynchronous serial interfaces for PCs. Multi-port serial boards are still sold, but the company focuses on embedded and external network (wired and wireless) communications as well as scalable USB products. The company also sells radio modems and embedded modules based on LTE (4G) communications platforms.