The Huawei S1720 28GWR 4X AC is a managed switch that provides high performance and reliable network connectivity for enterprise networks. Here's a brief introduction to the parameters mentioned:

1. 24 10/100/1000BASE T Ports: This refers to the 24 Ethernet ports on the switch that support three different speeds: 10 Mbps (Ethernet), 100 Mbps (Fast Ethernet), and 1000 Mbps (Gigabit Ethernet). The "T" stands for twisted pair, which is a type of cable used for Ethernet connections.

2. 4 10GE SFP+ Ports: This indicates that the switch has four 10 Gigabit Ethernet (10GE) ports using Small Form factor Pluggable Plus (SFP+) transceivers. SFP+ is a compact, hot pluggable transceiver used for both telecommunication and data communications applications. These ports can be used for higher speed connections, such as to a server or another switch.

3. Fixed AC Power: This means that the switch is designed to be powered by an alternating current (AC) power source. The term "fixed" implies that the power supply is not modular or interchangeable; it is a specific type of AC power input that comes with the switch. This is in contrast to some switches that might offer a choice between AC and DC power inputs or that use a modular power supply.

The Huawei S1720 28GWR 4X AC switch is part of Huawei's S1720 series, which is designed for small and medium sized enterprises and provides features such as full layer functions, large cache, and high performance forwarding capabilities. The switch supports a variety of network management functions and security features to ensure reliable and secure network operation.

Huawei S1700-8G-AC switch supports 8 10/100/1000BASE-T ports, fixed AC power：