Built for Real Networking Work
This switch suits SMB environments, office networks and anyone upgrading from basic unmanaged hardware. Buy it when you need a practical, no-nonsense way to handle 20 simultaneous connections with room to grow.
DAHUA
DAHUA DH-SG4020 18-Port Gigabit Managed Switch
- Switching capacity56
- Power consumption (max)24 W
- Operating temperature (T-T)0 – 10 – 55 °C
- Switch typeManaged
- Width163.85 mm
- Ethernet LAN data rates10,100,1000
- DHCP featuresDHCP client/DHCP server/DHCP snooping
- 18 Gigabit Ethernet ports deliver fast, stable connections across your entire setup
- 2 SFP ports for long-distance fibre uplinks when you need extended reach
- Managed features let you monitor, control and optimise traffic across your network
- Rack-mountable design fits neatly into standard server cabinets
Description
Specifications
General
| Brand | DAHUA |
|---|---|
| Form factor | 1U |
| Model name | DH-SG4020 |
| Product colour | Black |
| Fanless | Yes |
| Full duplex | Yes |
| Jumbo frames | 10000 |
| Cloud-managed | No |
| IGMP snooping | Yes |
| Rack mounting | Yes |
| Forwarding rate | 29.76 |
| Number of VLANs | 4000 |
| Link aggregation | Yes |
| MAC address table | 8000 |
| Packet buffer memory | 4.1 |
| Web-based management | Yes |
| Spanning tree protocol | Yes |
| SFP module slots quantity | 2 |
| Sustainability compliance | Yes |
| Mean time between failures (MTBF) | 467125.73 |
| Operating relative humidity (H-H) | 10 - 90 |
| Warranty | 36 months |
| EAN | 6923172593948 |
Storage
| Switching capacity | 56 |
|---|---|
| Storage temperature (T-T) | -40 - 75 |
| Storage relative humidity (H-H) | 5 - 95 |
Ports
| Ethernet LAN data rates | 10,100,1000 |
|---|---|
| Power over Ethernet (PoE) | No |
| Console port | RJ-45 |
| Virtual LAN features | Port-based VLAN/Tagged VLAN |
| Copper ethernet cabling technology | 1000BASE-T/100BASE-TX/10BASE-T |
| Gigabit Ethernet (copper) ports quantity | 18 |
| Basic switching RJ-45 Ethernet ports type | Gigabit Ethernet (10/100/1000) |
| Basic switching RJ-45 Ethernet ports quantity | 18 |
Connectivity
| Networking standards | IEEE 802.1x/IEEE 802.3/IEEE 802.3ab/IEEE 802.3ad/IEEE 802.3u/IEEE 802.3x/IEEE 802.3z |
|---|
Keyboard & controls
| Switch type | Managed |
|---|---|
| Reset button | Yes |
| Switch layer | L2 |
Battery & power
| Power consumption (max) | 24 W |
|---|---|
| Power source | DC |
| DC input voltage | 12 |
| Power supply included | Yes |
Performance & capacities
| Operating temperature (T-T) | 0 – 10 – 55 °C |
|---|
Features
| LED indicators | Yes |
|---|---|
| 10G support | No |
| VLAN support | Yes |
| DHCP features | DHCP client/DHCP server/DHCP snooping |
| Multicast support | Yes |
| Flow control support | Yes |
| Jumbo frames support | Yes |
| Quality of Service (QoS) support | Yes |
Dimensions & weight
| Width | 163.85 mm |
|---|---|
| Depth | 440 mm |
| Height | 43.65 mm |
| Weight | 1.57 kg |
