The Dejavoo QD4 WiFi version is a versatile and efficient credit card terminal reader that is perfect for businesses in the retail and services industries. Being unlocked allows for flexibility in choosing a service provider, ensuring compatibility with various systems. With its reliable brand reputation and advanced features, such as WiFi connectivity, the Dejavoo QD4 is a valuable tool for seamless point-of-sale transactions and money handling needs. No ethernet adapter available.