The Huawei S1720 28GWR PWR 4TP E AC switch is a managed Gigabit Ethernet switch designed for enterprise networks. Here is a brief introduction to the parameters mentioned:

1. 24 10/100/1000BASE T ports: This switch has 24 Gigabit Ethernet (GE) ports that support 10/100/1000 Mbps speeds using twisted pair cables. These ports can be used for connecting various devices such as computers, servers, and other network equipment.

2. 4 GE SFP ports: The switch also has 4 Gigabit Ethernet ports with Small Form factor Pluggable (SFP) slots. These ports can be used to connect SFP transceivers for fiber optic or copper connections, providing flexibility in network expansion and connectivity options.

3. 2 dual purpose 10/100/1000 BASE T or SFP ports: Two of the GE SFP ports can also function as 10/100/1000 Mbps twisted pair ports, allowing for additional connectivity options.

4. Fixed AC power: The switch has a fixed AC power supply, which means it requires a standard electrical outlet for power. This ensures a stable power source for the switch and its connected devices.

5. PoE+ (Power over Ethernet Plus): The switch supports PoE+, which allows it to provide power to connected devices through the Ethernet cables. This is particularly useful for devices such as wireless access points, IP cameras, and VoIP phones that require power but may not have a separate power source nearby.

6. Managed: The S1720 28GWR PWR 4TP E AC is a managed switch, meaning it can be configured and monitored using a network management system or through the web interface. This allows for advanced features such as VLANs, QoS (Quality of Service), and security settings to be implemented for better network performance and management.

In summary, the Huawei S1720 28GWR PWR 4TP E AC switch is a versatile and powerful networking device that offers a combination of high speed Gigabit Ethernet ports, flexibility in connectivity options, and advanced management features to support enterprise network requirements.

Huawei S1700-28GR-4X-AC switch supports 24 10/100/1000BASE-T ports, 4 10GE SFP+ ports, fixed AC power：