MTU-604 series 4/8-port serial port gateway server, each independent serial port can communicate with multiple platforms simultaneously without interfering with each other, and the power supply can be optionally AC220V and DC 9V/12V/28V/48V power supply modes, in addition to the standard RJ45 serial port form, terminal serial port form can also be selected, and various combinations of RS-232, RS-485, RS-422 can be formed according to needs. You can also choose convenient desktop (Desk type) or standard 1U rack mounted (Lite type) according to your needs.