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The Best ethernet to serial adapter of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best ethernet to serial adapter of 2022. Check our ranking below.

2,145 Reviews Scanned

Rank No. #1
DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs (2-Cable)
  • DB9 to RJ45 adapter: used for TCP/IP network interface with serial port network function, support serial data and network data bidirectional transparent transmission.Compatible with desktop computer, digital machine tools, PDA, bar code and other standard DB9 serial devices, stable and reliable performance, support maximum distance 66ft.
  • The DB9 RS232 COM signal is transmitted over the network cable,When using this adapter, it is recommended to use within a distance of 1-15 meters.Requires no external power, easy and Convenient to use.
  • High quality alloy transmission port reduce the transmission impedance and interference,environmentally friendly PVC material, super wear-resistant, Integral injection molding. improve data transmission rate and transmission quality.
  • Interface: DB9 Male to RJ45 female; 9pin/8P8C.the adapter run RS232 data over long distances (up to 100m) using UTP Cat 5/ Cat6 cable to bridge the gap.
  • Special Note: Usually this product needs to be used in pairs, specifically divided into: female to female, male to female, male to male three kinds of situations. Can also be used alone.
SaleRank No. #2
StarTech.com 1 Port RS232 to Ethernet IP Converter / Device Server - Aluminum - Serial over IP Device Server - Serial to IP Converter (NETRS2321P)
  • Rugged aluminum housing delivers reliable performance
  • Fast, 230.4 kbps baud rate
  • Mounts to a surface or on a DIN rail, with a built-in mounting bracket and included DIN rail clips
  • Compatible with the free, StarTech.com Serial Device Application Software for iOS, Android, and Chrome Browser (NETRSAPP)
  • Supports Telnet, for OS independent communication, perfect for Windows, Mac, and Linux users
SaleRank No. #3
DTech DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices
  • A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable
  • DB9 female to RJ45 modular adapter converts DB9 female connector into an RJ45 female connector (DB9 female - RJ45 Female pinout: 1-1, 2-2, 3-3, 4-4, 5-5, 6-6, 7-7, 8-8, 9-x)
  • A pair of DB9 to RJ45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft
  • Bi-directional DB-9 female to RJ-45 female converter comes with thumbscrews for easy and secure connection
  • (Please be noted it's NOT 15 pin VGA video port) It's compatible with Standard 9 Pin D-sub RS-232 Devices e.g. computer laptop, printer, modem, router, PDA, POS device, digital CNC machine tool, Barcode scanner, etc.
Rank No. #4
USR-TCP232-306 Serial to Ethernet Converter LAN Ethernet TCP/IP to RS232 RS485 RS422 Converter2
  • USR-TCP232-306 Serial to Ethernet Device Server is a Cost-Effective Solution for Serial Data Communication
  • Noted: Wide Power Supply 5-36v DC
  • HTTPD Client mode, Sends Serial Data in HTTP Format
  • Work Mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client
  • Supports RS232/RS485/RS422 Port ( Can’t be used at one time)
Rank No. #5
CERRXIAN DB9 RS232 Male & Female to RJ45 Female COM Port to LAN Ethernet Cat5e Cat6 Serial Coupler Extender Adapter(2-Pack)
  • DB9 (RS232) to RJ45 adapter for bidirectional conversion of TCP/IP network interfaces, transmitting signals between your DB9 ports via CAT5E/CAT6 RJ45 network cables.Special Note: Usually this product needs to be used in pairs.
  • Simple operation, cost saving, plug and play, no need to drive.Note:This product is only an adapter for exptending, not a console adapter.
  • High-speed, secure data transmission, double-shielded standard, ensuring signal transmission without interference, transmission signal up to 20M.
  • Premium adapter engineered with molded strain relief connectors for durability, grip treads for easy plugging and unplugging, and finger-tightened screws for a secure connection.
  • Suitable for computer, digital machine, PDA, bar code printer, monitor, TV, projector and more devices with DB9 connector.
Rank No. #6
DTECH DB9 to RJ45 Console Cable Cisco Device Management Serial Adapter (6 Feet, Blue)
  • DB9 to RJ45 console management cable connects your PC laptop to Cisco router, switch, firewall, wireless device and more
  • Cisco console cable's cross reference is equivalent to Cisco Part Number 72-3383-01, CAB-CONSOLE-RJ45, CAB-CONSOLE, CAB-1700-CON=, CAB-1600-CAN=, ACS-2600ASYN=, CAB-ME-CON=, AIR-CONCAB1200=, 1401-01B7000
  • 6 feet short rollover serial adapter allows you to place the device at a convenient distance
  • Ultra thin flat design makes it flexible, helps avoid tangled cords and saves space ; features RJ-45 male connector and 9-pin DB-9 D-sub port
  • Blue RJ45 to DB9 female converter cord is an ideal replacement data cable for reprogramming and updating compatible equipment and devices; can possibly be used to configure other networking devices as well
Rank No. #7
USR-TCP232-410s RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS
  • Dual Serial Device Server: Cpu: Cortex-M4 120Mhz, Serial RS485 & RS232 to Ethernet Server, 2 Serial Ports: 1 Port is RS232, 1 Port is RS485, 1 RJ45 Ethernet Port. Support RS232 & RS485 Working at The Same Time.
  • Data Link Protocol: Ip£¬Tcp£¬Udp£¬Dhcp£¬Dns£¬Http£¬Arp£¬Icmp£¬Web Socket£¬Httpd Client.
  • Speed: 10 / 100 Mbps, Mdi / Mdix Cross Direct Automatic Switching, Baud Rate: Rs-232£º600Bps ~ 230. 4Kbps£¬Rs-485£º600Bps ~ 1Mbps; 1.5Kv Electromagnetic Isolation, Shell Isolation Protection; Anti-Static 2Kv, Lightning Protection.
  • Configure Via Web Browser or Virtual Com Software Interface; Working Temperature: -40 ~ 85¡ãC, Power Consumption: < 1W.
  • What's in The Box: 1 x Dual Serial Device Server, 1 x 5V 1A Power Supply, 1 x Female to Female Serial Cable.
SaleRank No. #8
Tripp Lite Null Modem Serial RS232 Modular Adapter Kit 2x (DB9F to RJ45F)(P450-000)
  • 2pc DB9F to RJ45 Null Modem Adapter Kit
  • Uses readily available Cat5 Patch Cables
  • Null Modem Serial Connections up to 100ft
Rank No. #9
waveshare Ethernet Industrial Serial Server RS485 to RJ45 Ethernet Module, TCP/IP to Serial, Support Rail-Mount/Modbus Gateway, TCP Server/TCP Client/UDP Mode/UDP Multicast Multi Communication Modes
  • This is a RS485 device data acquisitor / IoT gateway for industrial environment. With multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. It features RS485 and Ethernet ports, uses screw terminals for power input, supports 9~24V wide range power supply. Rail-mount flame-retardant case design,easy to install. It is suitable for data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...
  • Primary function:bi-directional transparent data transmission between RS485 and Ethernet. Support Rail-mount: easy to combine multi rail-mounted serial server together, more freely. SupportModbus gateway: suitable for Modbus gridding upgrade, can be used with 3D configuration software
  • Multi communication modes:supports TCP server / TCP client / UDP mode / UDP multicast . MQTT/JSON to Modbus: more flexible conversion between different protocols.
  • Support Multi hosts roll-polling: different network devices will be identified and responsed respectively,no more crosstalk issue while communicating with multi network devices
  • Support NTP protocol:getting network time info for serial output or data upload . Multi configuration methods:supports Web browser configuration, obtaining dynamic IP via DHCP,DNS protocol connected domain server address .
SaleRank No. #10
Dahszhi DB9 Ethernet Adapter, DB9 to RJ45 Modular Adapter, F/F
  • Package Content: 6pcs x DB9 to RJ45 Adapter
  • Changer Type: DB9 to RJ45 (Female to Female)
  • RJ45 Pin Outs: 1-Blue, 2-Orange, 3-Black, 4-Red, 5-Green, 6-Yellow, 7-Gray, and 8-White.
  • Scope of Application: Used for modular RS232 RS422 and RS485 connections. Can be used to make customized serial connections.
  • Risk Free Shopping - Yohii hopes to provide you with the most satisfactory service. Full refund is guaranteed if the item has any quality issue after receiving.

Last update on 2022-08-28 / Affiliate links / Images from Amazon Product Advertising API

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