The Huawei S1720 28GWR 4P E AC is a managed Gigabit Ethernet switch that provides high performance, reliable, and secure network connectivity for enterprise networks. Here's a breakdown of the key parameters mentioned:

1. 24 10/100/1000BASE T ports: This refers to the number of Ethernet ports on the switch that support three different speeds:

  10BASE T: Supports 10 Mbps (10 Megabits per second) Ethernet over twisted pair cables.

  100BASE T: Supports 100 Mbps (100 Megabits per second) Fast Ethernet over twisted pair cables.

  1000BASE T: Supports 1000 Mbps (1 Gigabit per second) Gigabit Ethernet over twisted pair cables.

2. 4 GE SFP ports: GE stands for Gigabit Ethernet, and SFP stands for Small Form factor Pluggable. These are high speed ports that use SFP (Small Form factor Pluggable) modules to allow for flexible connectivity options such as fiber optic or copper cables. Each of these ports supports Gigabit Ethernet speeds.

3. Fixed AC power: This indicates that the switch is designed to be powered by an alternating current (AC) power supply. The term "fixed" suggests that the power supply is an integral part of the switch and cannot be easily replaced or upgraded. This is in contrast to some switches that might have removable power supplies or support both AC and DC power options.

4. E AC: This could be a model identifier or a specific feature set of the switch. It might indicate that the switch has certain enterprise level features or capabilities, or it could be related to the type of power supply (AC) and the intended environment (Enterprise).

The Huawei S1720 28GWR 4P E AC switch is designed for small to medium sized enterprise networks and can be used in various applications such as access layer switches in LANs, distribution switches in small networks, or as part of a larger network infrastructure. Its high speed ports and flexible connectivity options make it suitable for a wide range of network environments.

Huawei S1720X-16XWR-E-AC switch supports 16 10GE SFP+ ports, fixed AC power：