8 10/100/1000M adaptive RJ45 ports 2 Gigabit SFP ports Industrial grade working temperature: -40℃~75℃ ERPS ring network protocol Wide voltage input: 9.6V~60VDC Multiple installation methods: rail installation + wall installation IP30 protection: reduce the impact of dust Provide WEB management, broadcast storm protection and port interruption alarm switch, adapt to various complex network environments Three-way power input, redundant backup, greatly improve the product power supply reliability EMS high protection level, without fear of various harsh environments *Industrial switches are not equipped with power supply at the factory, please purchase separately if you need to use power supply Recommended to buy our industrial grade power supply: TL-P12200A or TL-P24075 industrial grade