The RJ45 connector is a commonly used connector type in networking, especially for Ethernet cables. Named after the term "Registered Jack 45," this connector has become the standard in both residential and commercial networking setups, providing a reliable way to connect various network devices like computers, routers, switches, and servers.

A USB to serial Converter is a converter used to connect a device with a USB interface to a device with a serial port (such as RS232, RS485, or RS422). This converter is widely used in the communication needs between modern computers and traditional serial devices, especially when many modern computers are no longer equipped with traditional serial ports.

A serial to Ethernet converter is a device used to connect serial devices (such as devices with RS232, RS485 or RS422 interfaces) to an Ethernet network. With this converter, data communication between serial devices and network devices can be achieved, expanding the connection range and application scenarios of serial devices.

serial port servers​ are widely used in industrial automation, power monitoring, telecommunications room monitoring, building automation systems, self-service banking systems and other fields. serial port servers can provide serial port to Internet, which can convert RS-232, RS-485, RS-422 serial port interfaces into TCP/IP network interfaces, and maintain two-way transparent transmission of statistical data between RS-232, RS-485, RS-422 serial port interfaces and TCP/IP network interfaces. It enables serial port devices to immediately have the function of TCP/IP network interface, network connection to carry out data communication, and greatly expand the communication distance of serial port devices.