Industrial Serial Device Servers for Serial-to-Ethernet Integration

Easily convert RS-232, RS-422, or RS-485 to ethernet with our industrial Serial Device Servers. Perfect for factory automation, remote monitoring, and legacy system integration, these devices provide a simple, reliable way to modernise older equipment. Our most popular models are available to buy online from stock, with a broader selection ready to order for more specific application needs. Whether you’re looking for a compact converter or a multi-port device server, we have a product for you.

Make it simple and painless to get an older serial enabled device or machine onto an Ethernet network. Not sure what you need? Talk to one of our technical account managers, who will be happy to help you find the right option for your setup.

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Serial Device Servers

Showing 60 of 90 Serial Device Servers items

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NE-4110A
Moxa NE-4110A
1 Port 10/100Mbps Ethernet Embedded RS-422/485 Serial Device Server, 0°C to +55°C
£56.50
NE-4120A
Moxa NE-4120A
10/100Mbps Ethernet Embedded Pin Header RS-422/485 Serial Device Server
£101.00
NE-4120S
Moxa NE-4120S
10/100Mbps Ethernet Embedded Pin Header RS-232 Serial Device Server, 0°C to +55°C
£60.50
NPort DE-211
Moxa NPort DE-211
1 Port RS-232/422/485 10Mbps Ethernet Serial Device Server
£132.50
EKI-1528I-DR
Advantech EKI-1528I-DR
8 Port RS-232/422/485 DIN-Rail Ethernet Serial Device Server
EKI-1511X
Advantech EKI-1511X
1 Port RS-422/485 Serial Device Server
4801
Sealevel 4801
8 Port RS-232 Ethernet Serial Device Server
4802
Sealevel 4802
8 Port RS-422/485 Ethernet Serial Device Server
4803
Sealevel 4803
8 Port RS-232/422/485 Ethernet Serial Device Server
4403
Sealevel 4403
4 Port RS-232/422/485 Ethernet Serial Device Server
4104
Sealevel 4104
1 Port RS-232/422/485 Ethernet Serial Device Server
4161
Sealevel 4161
16 Port RS-232 Ethernet Serial Device Server
4162
Sealevel 4162
16 Port RS-422/485 Ethernet Serial Device Server
4163
Sealevel 4163
16 Port RS-232/422/485 Ethernet Serial Device Server
4201
Sealevel 4201
2 Port RS-232 Ethernet Serial Device Server
4202
Sealevel 4202
2 Port RS-422/485 Ethernet Serial Device Server,
4203
Sealevel 4203
2 Port RS-232/422/485 Ethernet Serial Device Server
4101
Sealevel 4101
1 Port RS-232 Ethernet Serial Device Server
4102
Sealevel 4102
1 Port RS-422/485 Ethernet Serial Device Server
4103
Sealevel 4103
1 Port Isolated RS-232/422/485 Ethernet Serial Device Server
4401
Sealevel 4401
4 Port RS-232 Ethernet Serial Device Server
4402
Sealevel 4402
4 Port RS-422/485 Ethernet Serial Device Server
EKI-1521
Advantech EKI-1521
1 Port RS-232/422/485 Ethernet Serial Device Server
£243.00
EKI-1524
3 in stock
Advantech EKI-1524
4 Port RS-232/422/485 Ethernet Serial Device Server
£386.50
ADAM-4570
Advantech ADAM-4570
2 Port RS-232/422/485 Ethernet Serial Device Server
£207.00
ADAM-4570L
Advantech ADAM-4570L
2 Port RS-232 Ethernet Serial Device Server
£171.00
EKI-1526
Advantech EKI-1526
16 Port RS-232/422/485 Ethernet Serial Device Server – DB9 connectors
£1,076.00
EKI-1528
Advantech EKI-1528
8 Port RS-232/422/485 Ethernet Serial Device Server – DB9 Connectors – Wide Temperature Operation
£896.50
EKI-1511
Advantech EKI-1511
1 Port RS-232/422/485 Serial Device Server
£102.00
ADAM-4571
Advantech ADAM-4571
1 Port RS-232/422/485 Ethernet Serial Device Server
£146.00
EKI-1511L
Advantech EKI-1511L
1 Port RS-232 Serial Device Server
£151.50
EKI-1526NL
Advantech EKI-1526NL
16-Port Industrial Grade Network Serial Device Server – Cisco Pin-Definition
£1,125.50
EKI-1522
Advantech EKI-1522
2 Port RS-232/422/485 Ethernet Serial Device Server
£270.50
ADAM-4571L
Advantech ADAM-4571L
1 Port RS-232 Ethernet Serial Device Server
£117.00
MiiNePort E1
Moxa MiiNePort E1
1 Port 10/100Mbps Ethernet Embedded Serial Device Server – 50bps to 230.4kbps Baud rate
£55.00
MiiNePort E3
Moxa MiiNePort E3
1 Port 10/100Mbps Power Over Ethernet Embedded Pin Header Serial Device Server – 50bps to 230.4kbps Baud rate
£49.50
NPort 5110
37 in stock
Moxa NPort 5110
1 Port RS-232 Ethernet Serial Device Server – Power Adapter
£115.50
NE-4110S
Moxa NE-4110S
1 Port 10/100Mbps Ethernet Embedded RS-232 Serial Device Server, 0°C to +55°C
£56.50
NPort 5232
13 in stock
Moxa NPort 5232
2 Port RS-422/485 Ethernet Serial Device Server – Power Adapter
£188.00
NPort 5230
6 in stock
Moxa NPort 5230
1 Port RS-232 and 1 Port RS-422/485 Ethernet Serial Device Server – Power Adapter
£186.00
NPort 5150
23 in stock
Moxa NPort 5150
1 Port RS-232/422/485 Ethernet Serial Device Server – Power Adapter
£134.50
NPort 5210
4 in stock
Moxa NPort 5210
2 Port RS-232 Ethernet Serial Device Server
£186.00
NPort 6100-G2/6200-G2
Moxa NPort 6100-G2/6200-G2
2nd Gen 1/2-port RS-232/422/485 Secure Terminal Servers
£268.00
NPort 5410
6 in stock
Moxa NPort 5410
4 Port RS-232 Ethernet Serial Device Server – Power Adapter
£475.00
NPort 5130A
4 in stock
Moxa NPort 5130A
1 Port RS-422/485 Advanced Ethernet Serial Device Server – Screw-Type Power Connector and Power Adapter
£143.00
NPort 5230A
5 in stock
Moxa NPort 5230A
2 Port RS-422/485 Advanced Ethernet Serial Device Server – 2x DC Power Inputs – Surge Protection and Power Adapter
£199.50
NPort 5450
9 in stock
Moxa NPort 5450
4 Port RS-232/422/485 Ethernet Serial Device Server – Power Adapter
£569.00
NPort 5250AI-M12
Moxa NPort 5250AI-M12
2 Port RS-232/422/485 Ethernet Serial Device Server – M12 Connectors and EN 50155 & EN 50121 Compliance – Wide Temperature Operation
£789.00
NPort 5610-8-DT
Moxa NPort 5610-8-DT
8 Port RS-232 Desktop Ethernet Serial Device Server – DB9 Ports and Power Adapter
£662.00
NPort 5210A
Moxa NPort 5210A
2 Port RS-232 Advanced Ethernet Serial Device Server – Power Jack and Terminal Block Connectors – Power Adapter
£204.50
NPort 5610-16
5 in stock
Moxa NPort 5610-16
16 Port RS-232 Rack-Mount Ethernet Serial Device Server – 100V to 240V AC Power
£996.50
NPort 5630-16
1 in stock
Moxa NPort 5630-16
16 Port RS-422/485 Ethernet Serial Device Server – 100V to 240V AC Power
£995.50
NPort 5650-8-DT
10 in stock
Moxa NPort 5650-8-DT
8 Port RS-232/422/485 Desktop Ethernet Serial Device Server – DB9 Ports and Power Adapter
£743.50
NPort 6250
Moxa NPort 6250
2 Port RS-232/422/485 Ethernet Secure Serial Device Server – Power Adapter
£456.00
NPort 5450AI-M12
Moxa NPort 5450AI-M12
4 Port RS-232/422/485 Ethernet Serial Device Server – Wide Temperature Operation
£1,059.50
NPort 6650-16
4 in stock
Moxa NPort 6650-16
16 Port RS-232/422/485 Rack-Mount Ethernet Secure Serial Device Server – 100V to 240V AC Power
£1,173.00
NPort IA-5150
Moxa NPort IA-5150
1 Port RS-232/422/485 Ethernet Serial Device Server – 2x 10/100BaseT RJ45 ports
£265.00
NPort 6610-16
Moxa NPort 6610-16
16 Port RS-232 Rack-Mount Ethernet Secure Serial Device Server – 100V to 240V AC Power
£1,292.00
NPort 5650-8
5 in stock
Moxa NPort 5650-8
8 Port RS-232/422/485 Rack-Mount Ethernet Serial Device Server – 100V to 240V AC Power
£954.50
NPort 5650-16
20 in stock
Moxa NPort 5650-16
16 Port RS-232/422/485 Rack-Mount Ethernet Serial Device Server – 100V to 240V AC Power
£1,110.00
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Showing 60 of 90

How Do Serial Device Servers Extend Equipment Life?
They allow legacy machines with RS-232, RS-422 or RS-485 ports to be connected to modern IP networks. This avoids costly upgrades and keeps existing hardware in service while still benefiting from centralised control and monitoring.

Where Are They Typically Installed?
Serial device servers are used in factory automation, building management and energy networks. They make it possible to monitor sensors, controllers and meters across large sites without rewiring or replacing older devices.

What Features Make Them Suitable for Industry?
Models in this range include DIN-rail mounting options, wide power inputs and extended temperature ratings. Many also support encryption and secure management, ensuring data from critical systems is protected as it moves onto the network.