MDS-G4020 Series
20G-port Layer 2 full Gigabit modular managed Ethernet switches
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Our office will be closed December 22–26, 2025 so our team can enjoy the holidays with their families.
We will reopen on December 29, 2025 at 9:00am EST. Warm wishes to our customers and partners this holiday season!
We will reopen on December 29, 2025 at 9:00am EST. Warm wishes to our customers and partners this holiday season!
BRANDS
Product Types
- Industrial Ethernet Extenders
- Industrial I/O
- Industrial Security
- Industrial Sim Cards
- Industrial Ethernet Switches
- Industrial Cellular Routers
- Industrial Wireless
- Industrial Modbus & Fieldbus Gateways
- Industrial Media Converters
- Industrial Serial Connectivity
- Industrial USB Devices
- Industrial Video
- Industrial Computers
- Accessories
Industrial Ethernet Extenders
Industrial I/O
Industrial Security
Industrial Sim Cards
Industrial Ethernet Switches
- View All Industrial Ethernet Switches
- Industrial Commercial Ethernet Switches
- Industrial Web-Smart Ethernet Switches
- PoE Ethernet Switches
- IEC 61850-3 Ethernet Switches
- EN50155 Ethernet Switches
- Managed Ethernet Switches
- Unmanaged Ethernet Switches
- Rackmount Ethernet Switches
- Network Management Software
Industrial Commercial Ethernet Switches
Industrial Web-Smart Ethernet Switches
PoE Ethernet Switches
IEC 61850-3 Ethernet Switches
EN50155 Ethernet Switches
Managed Ethernet Switches
Unmanaged Ethernet Switches
Rackmount Ethernet Switches
Network Management Software
Industrial Cellular Routers
Industrial Wireless
Industrial Modbus & Fieldbus Gateways
Korenix Fieldbus Gateway & Protocol Switch
Pepperl+Fuchs Comtrol Gateways
Industrial Media Converters
Industrial Serial Connectivity
Console/Terminal Servers
Serial Boards
Serial Device Servers
Serial Converters, Repeaters, and Surge Protectors
Industrial USB Devices
Industrial Video
Industrial Computers
Advantech Industrial Computers
Accessories
MeanWell Power Supplies
Advantech
- View All Advantech
- Advantech Edge AI Camera
- Advantech Medical Computers
- Advantech Server Chassis
- Advantech Software
- Advantech Industrial Cellular Routers
- Advantech Industrial Ethernet Switches
- Advantech Boards & Cards
- Advantech Compact Computers
- Advantech Displays
- Advantech Fiber Ethernet Media Converters
- Advantech I/O Devices & Communication
- Advantech IoT Gateways
- Advantech Panel PCs
- Advantech Peripherals & Modules
- Advantech Rackmount Systems
- Advantech Tablet PCs
- Advantech Accessories
Advantech Software
Advantech Industrial Cellular Routers
Advantech Industrial Ethernet Switches
Advantech Boards & Cards
- View All Advantech Boards & Cards
- Advantech AI Video Solutions
- Advantech Data Acquisition (DAQ) & Communication
- Advantech iDoor Module
- Advantech Industrial ATX Motherboards
- Advantech Industrial Motherboards & Slot SBC
- Advantech NVIDIA GPU Cards
- Advantech PCI & PCIE Express Serial Boards
- Advantech Server Boards
- Advantech Workstation Boards
- Frame Grabber
Advantech Compact Computers
- View All Advantech Compact Computers
- Advantech Compact IPC
- Advantech DAQ-embedded Computer
- Advantech Embedded Automation Computers
- Advantech Fanless Embedded Computers
- Advantech Intelligent Transportation Systems
- Advantech Edge AI Systems
- Advantech AiMC Series
- Advantech Machine Vision Computers - AIIS Series
Advantech Displays
Advantech Fiber Ethernet Media Converters
Advantech I/O Devices & Communication
Advantech IoT Gateways
Advantech Panel PCs
- View All Advantech Panel PCs
- Advantech All-in-One Panel PC
- Advantech All-in-One Touch Computers & Kiosks
- Advantech Control Panel
- Advantech Human Machine Interfaces
- Advantech Industrial Thin Clients
- Advantech Operator Panels
- Advantech Touch Screen Computers
- Advantech Vehicle Mount Terminals
- Advantech Web-Browser Terminal
Advantech Peripherals & Modules
Advantech Accessories
- View All Advantech Accessories
- Advantech Adapters
- Advantech Antennas & Antenna Cables
- Advantech Cables
- Advantech Cellular Routers & Gateways Accessories
- Advantech Computer Parts and Accessories
- Advantech Mean Well Power Supplies
- Advantech Miscellaneous Accessories
- Advantech Mounting Hardware
- Advantech Panel PCs, Monitors, and HMI Accessories
- Advantech Power Accessories
- Surge Protection / Isolation Repeaters
- Advantech Wireless Accessories
Beijer Electronics
Beijer Electronics Software, Licenses & Agreements
Beijer Electronics Ethernet Switches
- View All Beijer Electronics Ethernet Switches
- Beijer Electronics Layer 3 Ethernet Switches
- Beijer Electronics Marine Ethernet Switches
- Beijer Electronics Layer 2 Ethernet Switches
- Beijer Electronics Rackmount Ethernet Switches
- Beijer Electronics PoE Ethernet Switches
- Beijer Electronics Unmanaged Ethernet Switches
- Beijer Electronics IEC 61850-3 Ethernet Switches
- Beijer Electronics EN50155 Ethernet Switches
Beijer Electronics Industrial Wireless
Beijer Electronics Media Converters
Beijer Electronics Accessories
Digi
Digi Cellular Routers
Digi Serial Connectivity
Digi USB Connectivity
Digi Industrial Wireless
Digi Embedded Systems
Digi Accessories
Ericsson Cradlepoint
Ericsson Cradlepoint All-In-One Router Solutions
Ericsson Cradlepoint Solution Bundles
Ericsson Cradlepoint Software Licenses Agreements
Ericsson Cradlepoint Accessories
EtherWAN
EtherWAN Wireless
EtherWAN Ethernet Switches
EtherWAN Media Converters
EtherWAN Ethernet Extenders
EtherWAN Surge Protectors
EtherWAN Accessories
InHand Networks
InHand Industrial Cellular Routers
InHand Gateways
InHand Enterprise Networking
InHand Vehicle Networking
InHand Industrial Switches
InHand Accessories
Moxa
- View All Moxa
- Moxa Network Security Appliance
- Moxa Ethernet Switches
- Moxa Industrial Wireless
- Moxa Industrial I/O
- Moxa Serial Device Servers
- Moxa Serial Converters
- Moxa Secure Routers
- Moxa Protocol Gateways
- Moxa Ethernet Media Converters
- Moxa USB-to-Serial Converters/USB Hubs
- Moxa Industrial Computing
- Moxa Software
- Moxa Multiport Serial Boards
- Moxa IP Cameras & Video Servers
- Moxa Accessories
Moxa Network Security Appliance
Moxa Ethernet Switches
Moxa Industrial Wireless
Moxa Industrial I/O
Moxa Serial Device Servers
Moxa Serial Converters
Moxa Secure Routers
Moxa Protocol Gateways
Moxa Ethernet Media Converters
Moxa USB-to-Serial Converters/USB Hubs
Moxa Industrial Computing
Moxa Software
Moxa Multiport Serial Boards
Moxa IP Cameras & Video Servers
Moxa Accessories
Pepperl+Fuchs Comtrol
- View All Pepperl+Fuchs Comtrol
- Industrial Serial to Fiber Converters
- DeviceMaster PROFINET to Modbus
- DeviceMaster EtherNet/IP to Modbus
- Pepperl+Fuchs Comtrol IO-Link Gateways
- RocketPort Industrial MultiPort Serial Boards
- Pepperl+Fuchs Comtrol Industrial Ethernet Switches
- DeviceMaster Ethernet Device Server
- Industrial Ethernet Media Converters
- Pepperl+Fuchs Comtrol DeviceMaster UP Gateways
- Pepperl+Fuchs Comtrol Accessories
Pepperl+Fuchs Comtrol IO-Link Gateways
RocketPort Industrial MultiPort Serial Boards
Pepperl+Fuchs Comtrol Industrial Ethernet Switches
DeviceMaster Ethernet Device Server
Pepperl+Fuchs Comtrol DeviceMaster UP Gateways
Pepperl+Fuchs Comtrol Accessories
Perle
- View All Perle
- Perle IOLAN Console Servers
- Perle Wireless & Cellular Serial Device Servers
- Perle Serial Device Servers
- Perle Media Converters
- Perle Ethernet Extenders
- Perle IRG Cellular Routers
- Perle IDS Industrial Switches
- Perle SFP/XFP Optical Transceivers
- Perle PoE Injectors
- Perle Surge Protectors
- Perle Ethernet I/O
- Perle Multiport Serial Boards
- Perle Accessories
Perle IOLAN Console Servers
Perle Wireless & Cellular Serial Device Servers
Perle Serial Device Servers
- View All Perle Serial Device Servers
- Perle IOLAN SDG Secure Device Servers
- Perle RS232
- Perle RS232/422/485 (MEI)
- Perle RS232/422/485 (MEI) Secure
- Perle RS232/422/485 PoE
- Perle RS232 for Medical Facilities
- Perle RS232/422/485 for Electric Utilities
- Perle RS232/422/485 for Telecom Facilities
- Perle Embedded Ethernet to Serial Modules
- Perle Serial Device Server Accessories
Perle Media Converters
Perle Ethernet Extenders
Perle IRG Cellular Routers
Perle IDS Industrial Switches
Perle Ethernet I/O
Perle Multiport Serial Boards
Perle Accessories
- View All Perle Accessories
- Perle Antennas
- Perle DIN Rail Power Supplies
- Perle IRG Accessories
- Perle Ethernet Switch Accessories
- Perle Serial Device Server Accessories
- Perle Console Server Accessories
- Perle Ethernet I/O Accessories
- Perle Media Converter Accessories
- Perle MCR Accessories
- Perle Multiport Serial Board Accessories
- Perle Software & Service
Poynting
-
Advantech
Advantech Boards & Cards
- Advantech AI Video Solutions
- Advantech Data Acquisition (DAQ) & Communication
- Advantech iDoor Module
- Advantech Industrial ATX Motherboards
- Advantech Industrial Motherboards & Slot SBC
- Advantech NVIDIA GPU Cards
- Advantech PCI & PCIE Express Serial Boards
- Advantech Server Boards
- Advantech Workstation Boards
- Frame Grabber
Advantech Accessories- Advantech Adapters
- Advantech Antennas & Antenna Cables
- Advantech Cables
- Advantech Cellular Routers & Gateways Accessories
- Advantech Computer Parts and Accessories
- Advantech Mean Well Power Supplies
- Advantech Miscellaneous Accessories
- Advantech Mounting Hardware
- Advantech Panel PCs, Monitors, and HMI Accessories
- Advantech Power Accessories
- Surge Protection / Isolation Repeaters
- Advantech Wireless Accessories
-
Beijer Electronics
Beijer Electronics Ethernet Switches
- Beijer Electronics Layer 3 Ethernet Switches
- Beijer Electronics Marine Ethernet Switches
- Beijer Electronics Layer 2 Ethernet Switches
- Beijer Electronics Rackmount Ethernet Switches
- Beijer Electronics PoE Ethernet Switches
- Beijer Electronics Unmanaged Ethernet Switches
- Beijer Electronics IEC 61850-3 Ethernet Switches
- Beijer Electronics EN50155 Ethernet Switches
- Digi
- Ericsson Cradlepoint
- EtherWAN
- InHand Networks
- Moxa
- Pepperl+Fuchs Comtrol
-
Perle
Perle Serial Device Servers
- Perle IOLAN SDG Secure Device Servers
- Perle RS232
- Perle RS232/422/485 (MEI)
- Perle RS232/422/485 (MEI) Secure
- Perle RS232/422/485 PoE
- Perle RS232 for Medical Facilities
- Perle RS232/422/485 for Electric Utilities
- Perle RS232/422/485 for Telecom Facilities
- Perle Embedded Ethernet to Serial Modules
- Perle Serial Device Server Accessories
Perle Accessories- Perle Antennas
- Perle DIN Rail Power Supplies
- Perle IRG Accessories
- Perle Ethernet Switch Accessories
- Perle Serial Device Server Accessories
- Perle Console Server Accessories
- Perle Ethernet I/O Accessories
- Perle Media Converter Accessories
- Perle MCR Accessories
- Perle Multiport Serial Board Accessories
- Perle Software & Service