Drom power DAHUA CS4220-16GT-190 20-Port Cloud Managed Desktop Gigabit PoE Switch

The Drom power DAHUA CS4220-16GT-190 20-Port Cloud Managed Desktop Gigabit PoE Switch is a professional managed PoE switch designed for CCTV systems, offices, schools, retail stores, apartment blocks, and business networks that need stable Gigabit connectivity, centralized switch management, and reliable PoE power delivery for multiple IP cameras and other PoE devices. It features 16 × 10/100/1000 Mbps Gigabit PoE ports, 2 × Gigabit RJ45 uplink ports, and 2 × Gigabit SFP uplink ports, making it suitable for medium-to-large surveillance and structured network deployments. With a 190W total PoE budget, IEEE 802.3af/at support on all PoE ports, additional IEEE 802.3bt support on the red port, cloud and web management, PoE watchdog, long-distance PoE transmission up to 250m, and rack-mount desktop design, this switch is a strong solution for larger CCTV and business PoE networking installations.

Product Features

20-Port Switch with 16 Gigabit PoE Ports

The DAHUA CS4220-16GT-190 comes with 20 ports in total, including 16 × RJ45 10/100/1000 Mbps Gigabit PoE ports for powering compatible IP cameras and network devices. It also includes 2 × RJ45 Gigabit uplink ports and 2 × 1000 Mbps SFP uplink ports for copper or fiber backbone connectivity, giving flexibility in CCTV and business network installations.

190W PoE Budget with IEEE 802.3bt on Red Port

This switch supports IEEE 802.3af / IEEE 802.3at PoE on all PoE ports, with additional IEEE 802.3bt support on the red PoE port for higher-power devices. It offers a total PoE budget of 190W, making it suitable for multiple IP cameras, access points, and other PoE-powered devices in larger surveillance systems.

Cloud, Web, and App-Based Management

The CS4220-16GT-190 is a Layer 2 smart managed switch that supports web management, cloud management, and centralized monitoring through Dahua’s DoLynk app/platform. This allows installers and businesses to configure, monitor, and manage the switch more easily than with a basic unmanaged switch.

PoE Watchdog for Camera Stability

This model supports PoE Watchdog, which can automatically restart a PoE port when a connected camera or PoE device becomes unresponsive. This helps improve uptime and reduce maintenance effort in surveillance deployments where stable camera operation is important.

Long Distance PoE Transmission up to 250m

The switch supports long-distance PoE transmission up to 250 meters in extend mode, making it useful for CCTV cameras installed at gates, fences, corridors, parking areas, warehouses, and other points far from the main switch location. Dahua’s transmission table indicates support for extended reach depending on the PoE load and cable quality.

VLAN, STP, RSTP, and Link Aggregation Support

The DAHUA CS4220-16GT-190 supports VLAN, STP, RSTP, and link aggregation, along with features such as loop prevention, storm control, port isolation, LLDP, and DHCP client. These features help improve traffic management, network stability, and structured surveillance deployment performance.

Rack-Mount Metal Design

With its sheet metal housing and desktop / rack-mount form factor, the switch is suitable for network cabinets, CCTV racks, office IT rooms, schools, retail back offices, and structured surveillance installations that require a durable professional switch.

Product Specifications

• Brand: Drom power Dahua
• Model: CS4220-16GT-190
• Product Type: 20-Port Cloud Managed Desktop Gigabit PoE Switch
• Ports: 20 ports total
• PoE Ports: 16 × RJ45 10/100/1000 Mbps Gigabit PoE ports
• RJ45 Uplink Ports: 2 × RJ45 10/100/1000 Mbps Gigabit uplink ports
• SFP Uplink Ports: 2 × 1000 Mbps SFP uplink ports
• PoE Standard: IEEE 802.3af / IEEE 802.3at; additional IEEE 802.3bt on red port
• PoE Power Budget: 190W total
• Switching Capacity: 40 Gbps
• Packet Forwarding Rate: 29.76 Mpps
• Layer: Layer 2
• Management: Web management / cloud management / app-based centralized management
• Special Functions: PoE Watchdog, long-distance PoE, VLAN, STP, RSTP, link aggregation, loop prevention, storm control, port isolation, LLDP, DHCP client
• Transmission Distance: Up to 250m in extend mode depending on load/cable conditions
• Power Supply: 54V switch power supply
• Operating Temperature: -10°C to +55°C
• Operating Humidity: 5%–95% RH, non-condensing
• Static Protection: Air discharge 8 kV, contact discharge 6 kV
• Lightning Protection: Common mode 4 kV, differential mode 2 kV
• Dimensions: 440 × 220 × 44 mm
• Installation Type: Desktop / rack mount
• Housing Material: Sheet meta