Dahua 18-Port Cloud-Managed PoE Switch with 16 PoE Channels and 240W Total Power for IP Video Surveillance
CS4218-16ET-240-V2 The PoE switch is a professional cloud-managed solution designed for video surveillance networks and advanced IT infrastructures. Equipped with 18 total channels , including 16 10/100 Mbps PoE ports and 2 Gigabit combo ports , it guarantees maximum connection flexibility. The high total PoE power of 240 W allows direct powering of IP cameras and high-power devices, with IEEE 802.3af/at/bt support up to 90 W per port . Cloud management via the DoLynk app , PoE Watchdog functions, Long Distance PoE up to 250 m and loop and surge protection make this switch reliable, secure and perfectly optimized for professional smart systems. Dahua
CS4218-16ET-240-V2 | 18 PORT CLOUD MANAGED NETWORK SWITCH WITH 16 POE PORTS - DAHUA

The Dahua CS4218-16ET-240-V2 PoE switch is designed for IP video surveillance systems and professional networks that require high performance and centralized management. It has a total of 18 channels , with 16 PoE ports dedicated to directly powering cameras and network devices, supported by a total PoE power of 240 W. Cloud and web management, combined with the advanced functions of PoE Watchdog , Long Distance PoE up to 250 meters and VLAN and loop protection , guarantees stability, security and operational continuity even in complex environments with a high device density.
Main specifications:
- 18 total channels with 16 10/100 Mbps PoE ports
- Total PoE power 240W with IEEE 802.3af/at/bt support
- Up to 90W per port on dedicated ports
- Cloud Management with DoLynk platform
- PoE Watchdog for automatic port recovery
- Long Distance PoE up to 250 m
- VLAN, loop and surge protection
- Professional metal structure for continuous use
Further details

Technical data sheet
| PRODUCT | CS4218-16ET-240-V2 |
| Basic | |
| Layer | Layer 2 |
| Switching Capacity | 7.2 Gbps |
| Packet Forwarding Rate | 5.36 Mpps |
| Description of Function Slots | Port 1-16: 16 × RJ45 10/100 Mbps(PoE) Port 17-18: 2 × RJ45 10/100/1000 Mbps(Combo) Port 17-18: 2 × SFP 1000Mbps(Combo) |
| Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Operating Humidity | 10%–90% (RH), non-condensing |
| Storage Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
| Storage Humidity | 5%–95% (RH), non-condensing |
| Power Supply | Built-in power supply: 100–240 VAC, 47–63 Hz, max 4 A |
| Power Consumption | Idling: 3 W Full load: 246.8 W |
| Statics Protection | Air discharge: 8 kV; Contact discharge: 6 kV |
| Lighting Protection | Common mode: 6 kV; Differential mode: 1 kV |
| Net Weight | 2.5 kg (5.51 lb) |
| Gross Weight | 3.2 kg (7.05 lb) |
| Product Dimensions | 440 mm × 228.81 mm × 43.65 mm ( × 9.01" × 1.72") (L × W × H) |
| Packaging Dimensions | 540 mm × 342 mm × 90 mm (21.26" × 13.46" × 3.54") (L × W × H) |
| Casing Material | Sheet metal |
| Installation | Desktop mount; rack mount |
| Certifications | THERE IS |
| PoE | |
| PoE | Yes |
| PoE Power | Port 3-16≤30W, port 1-2≤90W, total≤240W |
| PoE Protocol | IEEE 802.3af; IEEE 802.3at; Hi-PoE; IEEE 802.3bt |
| PoE Power Consumption Management | PoE power consumption management PoE power on/off turns off PoE if overload is detected |
| PoE Pin Assignment | Port 1-2: 1, 2, 4, 5 (V+), 3, 6, 7, 8 (V-) Port 3-16: 1, 2, (V+), 3, 6, (V-) |
| Long Distance PoE Transmission | Yes |
| Hardware | |
| DIP Switch | Managed Mode: On by default for both local web and cloud management. Off for Unmanaged Mode. PoE Watchdog: Monitors ports 1-16 and auto-restarts the PoE port when there is no traffic for 2 min. (Only works when Managed Mode is Off) Extend Mode: Ports 1-16; transmission distance up to 250 meters at 10 Mbps. (Only works when Managed Mode is Off) |
| Reset Button | 1 |
| Performance | |
| MTBF | 1626836 h |
| Packet Buffer Size | 4 Mbit |
| Jumbo Frame | 9216 Bytes |
| MAC Table Size | 8K |
| Communication Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3X, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3az |
| VLAN Number | 32 |
| Feature | |
| VLAN Function | IEEE 802.1Q VLAN |
| Port Feature | IEEE 802.3x Flow Control Unknown Unicast Suppression Multicast Storm Control Broadcast Storm Control MAC+Port Binding Loop Prevention |
| Mirror | Local Port Mirroring N:1 Mirroring |
| Reliability | LLDP |
| Security | Port Isolation |
| Equipment Management | Web Management Cloud Management Logs Fault Alarm |
| General | |
| Packing List | 1 × User Manual 1 × Legal and Regulatory Information 1 × Power Cord 1 × Rack-mounting Kit |


