Features:

1. PoE Support: This switch supports Power over Ethernet, meaning it can provide power to connected devices such as IP cameras, VoIP phones, and wireless access points through the Ethernet cable.
2. Four Fast Ethernet Ports: It has four fast Ethernet ports, which support high-speed data transfer of up to 100 Mbps.
3. Smart Management: The switch comes with smart management features, allowing for efficient network traffic control and prioritization.
4. Compact Design: Its compact design makes it suitable for small spaces and easy to install.
5. IEEE 802.3af/at Compliant: The switch adheres to the IEEE 802.3af/at standards for PoE, ensuring compatibility with a wide range of devices.
6. Plug-and-Play Installation: It supports plug-and-play installation, making it easy to set up and use without requiring extensive networking knowledge.
7. Fanless Design: The switch features a fanless design, ensuring silent operation and increased reliability.

Functions:

1. Power Over Ethernet (PoE): The switch can deliver power to PoE-enabled devices, eliminating the need for separate power cables and outlets.
2. Traffic Management: It supports features like VLAN (Virtual Local Area Network) to segregate network traffic for improved security and performance.
3. Quality of Service (QoS): QoS features ensure that critical applications receive priority bandwidth, optimizing network performance.
4. Remote Management: The switch allows for remote management and monitoring, enabling administrators to troubleshoot and configure the network remotely.
5. Energy Efficient: With its energy-efficient design, the switch helps reduce power consumption, contributing to cost savings over time.

Benefits/Advantages:

1. Simplified Installation: The PoE capability eliminates the need for separate power cables, simplifying installation and reducing clutter.
2. Cost Savings: By combining data and power delivery over a single Ethernet cable, the switch helps reduce overall infrastructure costs.
3. Increased Flexibility: PoE support allows for flexible placement of devices, as they are not restricted by proximity to power outlets.
4. Improved Scalability: The switch’s compact design and smart management features make it suitable for scaling up network infrastructure as the business grows.
5. Reliability: With its fanless design and adherence to industry standards, the switch offers reliable performance with minimal downtime.
6. Enhanced Security: VLAN support helps enhance network security by isolating sensitive traffic and preventing unauthorized access.

Overall, the HIKVISION Network Switch DS-3E1105P-EI/M offers a cost-effective, efficient, and reliable solution for small to medium-sized networks requiring PoE support and smart management features.