CS4220-16GT - The 20-port cloud switch (16 RJ-45 Gigabit, 2 RJ-45 uplinks, and 2 SFP uplinks) is designed for high-performance enterprise networks and security systems. Thanks to the DoLynk Care platform, it allows remote management, real-time notifications, and network topology visualization for complete control. With a switching capacity of 40 Gbps and a packet forwarding rate of 29.76 Mpps , it ensures stable and smooth transmissions even with high traffic volumes. The fanless metal design ensures silence, protection against surges, and resistance to extreme temperatures, making it ideal for offices, factories, and professional environments. Dahua
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CS4220-16GT | 20-Port Cloud-Managed Network Switch

The Dahua CS4220-16GT 20-port managed cloud switch (16 Gigabit RJ-45 ports, 2 RJ-45 uplinks, and 2 SFP uplinks) is designed to ensure stable connectivity and advanced management of enterprise networks. Through the DoLynk Care platform, it offers remote monitoring, real-time notifications, and network topology visualization for optimal control. With a switching capacity of 40 Gbps and a packet forwarding rate of 29.76 Mpps, it ensures high performance even with large data volumes. The fanless, all-metal design is resistant to surges and discharges, making it ideal for offices, factories, and professional environments .
Main specifications:
- 20 total ports: 16 RJ-45 Gigabit + 2 RJ-45 uplinks + 2 SFP uplinks
- Cloud management via DoLynk Care app
- Network topology with LLDP protocol
- Switching capacity 40 Gbps and forwarding rate 29.76 Mpps
- Fanless metal design with integrated guards
Further details

Technical data sheet
CS4220-16GT | |
Basic | |
Layer | Layer 2 |
Switching Capacity | 40 Gbps |
Packet Forwarding Rate | 29.76 Mpps |
Description of Function Slots | Port 1-16: 16 × RJ45 10/100/1000Mbps Port 17-18: 2 × RJ45 10/100/1000 Mbps (uplink); Port 19-20: 2 × SFP 1000Mbps (uplink) |
Operating Temperature | –10 °C to +55 °C (+14 °F to +131 °F) |
Operating Humidity | 5%–95% (RH), non-condensing |
Storage Temperature | –40 °C to +70 °C (–40 °F to +158 °F) |
Storage Humidity | 5%–95% (RH), non-condensing |
Power Supply | Built–in power supply: 100–240 VAC, 50/60 Hz, max 1.0A |
Power Consumption | Idling: ≤4 W Full load: 14.4 W |
Statics Protection | Air discharge: 8 kV; Contact discharge: 6 kV |
Lightning Protection | Common mode: 4 kV Differential mode: 2 kV |
Net Weight | 1.65 kg (3.64 lb) |
Gross Weight | 2.5 kg (5.51 lb) |
Product Dimensions | 440 mm × 164 mm × 44 mm (17.32" × 6.45" × 1.73") (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; wall mount |
PoE | |
PoE | No |
Hardware | |
Reset Button | 1 |
Performance | |
MTBF | 222.36 years |
Packet Buffer Size | 4 Mbit |
Jumbo Frame | 15K Bytes |
MAC Table Size | 8K |
Communication Standard | IEEE 802.3 IEEE 802.3u IEEE 802.3x IEEE 802.3az IEEE 802.3ab IEEE 802.3ad |
VLAN Number | 32 |
Feature | |
Ethernet Loop Protection | STP; RSTP |
VLAN Function | IEEE 802.1Q VLAN |
Link Aggregation | Static Aggregation |
Port Feature | IEEE 802.3x Flow Control Unknown Unicast Suppression Multicast Storm Control Broadcast Storm Control MAC+Port Binding Loop Prevention |
Mirror | N:1 Mirroring Local Port Mirroring |
Reliability | LLDP |
DHCP Function | DHCP Client |
Security | Port Isolation |
Equipment Management | Web Management Cloud Management Logs Fault Alarm |
General | |
Packing List | 1 × Quick Start Guide 1 × Legal and Regulatory Information 1 × Power Adapter 1 × Power Cord |