The CH-0804G4 is an 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 flexible connectivity options.This switch supports various network redundancy protocols such as RSTP, MSTP, ERPS, and LACP, ensuring reliable and uninterrupted network operation. It also offers QoS CoS/DSCP for increased determinism, IGMP Snooping for up to 512 groups, and DHCP Relay Option 82 for efficient IP address assignment policies.With SNMP support for network management, storm protection, and USB storage for configuration-free replacement, the CH-0804G4 provides a comprehensive and reliable solution for industrial automation applications. It also supports Ethernet/IP and Modbus TCP protocols, as well as PoE PD Alive Check Function for power recycle of PoE devices.