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10 Best Ethernet Gateways For Seamless Serial To Ethernet Conversion - May 2026

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Last Updated: 27-05-2026

1

DTECH DB9 RS232 to RJ45 Serial Adapter S232 Male to RJ-45 CAT5 CAT6 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices

DTECH DB9 RS232 to RJ45 Serial Adapter S232 Male to RJ-45 CAT5 CAT6 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices

DTECH

9.8

9.8

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2

RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function

RS232/485/422 to RJ45 Ethernet Converter, TCP/IP to Series, Modbus Gateway, Industrial Isolated RS232/485/422 Serial Serial Serial Server for Rail Mounting with POE Function

Waveshare

9.6

9.6

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3

LFHUKEJI RJ45 to RS232,COOSO DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 4.9Ft/1.5meters

LFHUKEJI RJ45 to RS232,COOSO DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 4.9Ft/1.5meters

LFHUKEJI

9.5

9.5

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4

LFHUKEJI RJ45 to RS232, DB9 9-Pin Serial Port Female to RJ45 Cat5 Ethernet LAN Console 4.9Ft/1.5meters

LFHUKEJI RJ45 to RS232, DB9 9-Pin Serial Port Female to RJ45 Cat5 Ethernet LAN Console 4.9Ft/1.5meters

LFHUKEJI

9.2

9.2

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5

LANMINGLEL RJ45 to DB9 Cable RJ45 Male to DB9 9-Pin Male RS232 Serial Port Cat5 Ethernet LAN Console Cable RJ45 to RS232 Networking Devices Console Cable for Routers, Switches 0.5M

LANMINGLEL RJ45 to DB9 Cable RJ45 Male to DB9 9-Pin Male RS232 Serial Port Cat5 Ethernet LAN Console Cable RJ45 to RS232 Networking Devices Console Cable for Routers, Switches 0.5M

LANMINGLEL

9.1

9.1

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6

HEIBTENY RS485 To Ethernet Converter DIN Rail Serial Server With For Modbus TCP MQTT Support Industrial For Gateway For Wide Temperature Range

HEIBTENY RS485 To Ethernet Converter DIN Rail Serial Server With For Modbus TCP MQTT Support Industrial For Gateway For Wide Temperature Range

HEIBTENY

8.8

8.8

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7

LFHUKEJI RJ45 to RS232 DB9 9-Pin Serial Port Female to RJ45 Cat5 Ethernet LAN Console 9.8Ft/3meters

LFHUKEJI RJ45 to RS232 DB9 9-Pin Serial Port Female to RJ45 Cat5 Ethernet LAN Console 9.8Ft/3meters

LFHUKEJI

8.6

8.6

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8

rhinocables - RJ45 Crossover Adapter| Cat5e Ethernet Adapter for Network Conversion | Seamless Connectivity with Cat 5 Connectors | Ideal for changing standard ethernet to direct link crossover

rhinocables - RJ45 Crossover Adapter| Cat5e Ethernet Adapter for Network Conversion | Seamless Connectivity with Cat 5 Connectors | Ideal for changing standard ethernet to direct link crossover

rhinocables

8.4

8.4

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9

LFHUKEJI RJ45 to RS232, DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 9.8Ft/3meters

LFHUKEJI RJ45 to RS232, DB9 9-Pin Serial Port Male to RJ45 Cat5 Ethernet LAN Console 9.8Ft/3meters

LFHUKEJI

8.2

8.2

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10

EBYTE TTL Serial to RJ45 Ethernet Wireless Module NE2-S1 Modbus Gateway RTU MQTT DNS Low Power Heart Beat Remote Upgrade

EBYTE TTL Serial to RJ45 Ethernet Wireless Module NE2-S1 Modbus Gateway RTU MQTT DNS Low Power Heart Beat Remote Upgrade

EBYTE

8.1

8.1

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