The Huawei S1720 28GWR PWR 4X E AC switch is a high performance, enterprise level switch designed for small and medium sized businesses. Here's a breakdown of the 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.

  100BASE T: Supports 100 Mbps (100 megabits per second) Fast Ethernet.

  1000BASE T: Supports 1 Gbps (1 gigabit per second) Gigabit Ethernet.

2. 4 10GE SFP+ ports: The switch has four SFP+ (Small Form factor Pluggable Plus) ports that support 10 Gigabit Ethernet (10GbE). These ports are used for high speed data transmission and are often used for connecting to other switches or high performance servers.

3. Fixed AC power: This indicates that the switch is powered by an AC (Alternating Current) power supply. It does not support DC (Direct Current) power, which is common in some industrial or outdoor applications.

4. PoE+: PoE stands for Power over Ethernet, and PoE+ is an enhanced version of this technology. It allows the switch to provide both data and power to PoE enabled devices (such as wireless access points, IP cameras, and VoIP phones) through the Ethernet cables. PoE+ can deliver more power than the standard PoE, making it suitable for devices with higher power requirements.

5. 4X: This likely refers to the four 10GE SFP+ ports, indicating that these are the "4 times" or "4X" high speed ports on the switch.

6. E AC: This could be a model or part number specific to Huawei, indicating a particular configuration or version of the switch that includes the features listed.

This switch is designed to provide high speed connectivity, power efficiency, and advanced features suitable for growing businesses that require reliable and scalable network infrastructure.

Huawei S1720-52GWR-4X-E-AC switch supports 48 10/100/1000BASE-T ports, 4 10GE SFP+ ports, fixed AC power：