The CH-0804G4 is an 8+4 Port Industrial Managed PoE++ Gigabit L3 Switch designed for harsh environments and wide temperature range applications. It features 8 Gigabit Ethernet ports with 4 IEEE 802.3bt 60W PoE++ ports, as well as 4 1000F(x) SFP slots for added flexibility.This switch supports various network redundancy protocols such as RSTP, MSTP, ERPS, and LACP, ensuring high availability and reliability. Quality of Service (QoS) features like CoS/DSCP help increase determinism in network traffic, while IGMP Snooping and DHCP Relay Option 82 provide advanced management capabilities.With support for SNMP v1/v2c/v3, network management is made easy, and industrial automation protocols like Ethernet/IP and Modbus TCP are also supported. The switch includes features like Storm Protection and PoE PD Alive Check Function for added security and power management