DH-SG4020 | Type Managed | Switch layer L2 | Quality of Service (QoS) support Yes | Web-based management Yes | 18xBasic switching RJ-45 Ethernet ports quantity | Basic switching RJ-45 Ethernet ports type Gigabit Ethernet (10/100/1000) | 2xSFP module slots quantity | Console port RJ-45 | Full duplex Yes | Switching capacity 56 Gbit/s |…