The Huawei FutureMatrix S1730S S8T4S A1 is a managed switch that provides a range of features and capabilities for network connectivity. Here is an introduction to the parameters mentioned:

1. 8 10/100/1000BASE T: This refers to the switch having eight Gigabit Ethernet (GE) ports that support three different speeds: 10 Mbps (Ethernet), 100 Mbps (Fast Ethernet), and 1000 Mbps (Gigabit Ethernet). The "T" stands for twisted pair, indicating that these ports use copper cabling.

2. 4 GE SFP: This indicates that the switch has four Gigabit Ethernet ports that use Small Form factor Pluggable (SFP) transceivers. SFP ports are versatile as they can support different types of network connections, such as fiber optic, depending on the type of SFP module inserted.

3. Fixed AC power: This means that the switch is designed to be powered by an alternating current (AC) power source. It does not have the option for a direct current (DC) power input. The term "fixed" implies that the power supply is an integral part of the switch and cannot be easily changed or upgraded.

In summary, the Huawei FutureMatrix S1730S S8T4S A1 is a managed switch that offers a combination of copper and fiber optic connectivity options, with a focus on Gigabit Ethernet speeds. It is designed for environments that require high speed data transmission and is powered by a fixed AC power supply.

Huawei S1720-28GWR-PWR-4TP-E-AC switch supports 24 10/100/1000BASE-T ports, 4 GE SFP ports, 2 of which are dual-purpose 10/100/1000 BASE-T or SFP ports, fixed AC power, PoE+：