Top 10 RS232 to Ethernet – Serial Adapters

As an Amazon Associate I earn from qualifying purchases.



PUSR USR-TCP232-302 Tiny Size RS232 to TCP IP Converter Serial RS232 to Ethernet Server Module Ethernet Converter Support DHCP/DNS

PUSR #ad - User can apply it to device networking communication. This is a serial rs232 to ethernet server, used for data transparent transmission. Usr-tcp232-302 is internally integrated with TCP/IP protocol. Work mode: tcp server, udp client, httpd client. Support dhcp, automatically obtain an ip address and query IP address through serial setting protocol, Support DNS function, Set parameters through webpage, Upgrade firmware via network.

Usr-tcp232-302 is a low-cost serial device server, whose function is to realize bidirectional transparent transmission between RS232 and Ethernet. Under tcp server mode, routers, the global unique mac address bought from ieEE, switches, Can work in LAN, client number ranges from 1 to 16; default number is 4, user can define MAC address, Across the gateway, also can work in the Internet external network.

Support virtual serial port and provide corresponding software usr-VCOM, put an end to dead link, TCP Client, UDP Server, Heartbeat package mechanism to ensure connection is reliable, User-defined registration package mechanism, check connection status and use as custom packet header. Auto-mdi/mdix, odd, even, check bit of none, rj45 port with 10/100mbps, Serial port baud rate from 600 bps to 230.4 kbps, mark and Space.
BrandPUSR #ad
ManufacturerPUSR #ad
Height1.18 Inches
Length3.15 Inches
Weight0.44 Pounds
Width1.97 Inches
Part NumberUSR-TCP232-302



DB9 RS232 to RJ45 Extender, DB9 9-Pin Serial Port Female&Male to RJ45 CAT5 CAT6 Ethernet LAN Extend Adapter Cable-2pcs 2-Cable

XMSJSIY #ad - 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. The db9 rs232 com signal is transmitted over the network cable, it is recommended to use within a distance of 1-15 meters.

Requires no external power, When using this adapter, easy and Convenient to use. Db9 to rj45 adapter: used for tcp/ip network interface with serial port network function, bar code and other standard DB9 serial devices, PDA, stable and reliable performance, support serial data and network data bidirectional transparent transmission. Compatible with desktop computer, digital machine tools, support maximum distance 66ft.

High quality alloy transmission port reduce the transmission impedance and interference, super wear-resistant, environmentally friendly PVC material, Integral injection molding. Improve data transmission rate and transmission quality. Can also be used alone. 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.
BrandXMSJSIY #ad
ManufacturerSisselyan #ad

3. StarTech

#ad 1 Port RS232 to Ethernet IP Converter / Device Server, Serial to IP Converter NETRS2321P, Serial over IP Device Server, Aluminum

StarTech #ad - Wall or diN-Rail mountable. Supports telnet, perfect for Windows, for os independent communication, Mac, and Linux users. Fast, 2304 kbps baud rate. Mount on din-rails or on a wall with the attached mounting brackets.

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. Suitable for hash environments with a rugged, aluminum enclosure. Configure via web browser or Virtual Com software interface. Access a serial device from anywhere with an IP-based connection.

Supports telnet, mac, perfect for Windows, for OS independent communication, and Linux users. Support for dhcp, udp, icmp, arp, ip, hTTP, TCP. Up to 4608 kbps baud rate. Rugged aluminum housing delivers reliable performance. Aluminum enclosure. Configurable using the software utility Windows only, or web browser. Compliant with ieee 802.
BrandStarTech #ad #ad
Height0.9 Inches
Length3.4 Inches
Weight0.2 Pounds
Width2.1 Inches
Part NumberNETRS2321P
Warranty2 Year



CERRXIAN DB9 RS232 Male & Female to RJ45 Female COM Port to LAN Ethernet Cat5e Cat6 Serial Coupler Extender Adapter2-Pack

CERRXIAN #ad - 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, monitor, bar code printer, pda, TV, digital machine, projector and more devices with DB9 connector. Simple operation, no need to drive. Note:this product is only an adapter for exptending, cost saving, plug and play, not a console adapter. High-speed, ensuring signal transmission without interference, secure data transmission, double-shielded standard, transmission signal up to 20M. 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.
ManufacturerLemeng #ad
Height1.05 Inches
Length6.1 Inches
Weight0.09 Pounds
Width3.35 Inches



ARAIERD Din Rail Mount RS232 to Ethernet Converter Server Device Bidirectional DB9 to RJ45 Serial to IP Converter Support Modbus Gateway for Data Network Transmission Industrial Automation

ARAIERD #ad - Support multi-host polling function the rs232 serial adapter can identify data sent by different network devices and respond accordingly to prevent data misalignment. Rs232 to ethernet the din rail rs232 serial server is a networking device server that realizes the function of rs232 to Ethernet bidirectional transparent transmission.

This rs232 to ethernet converter has 1 Ethernet port, 10/100Mbps self-adaptation; industrial-grade design, small size. Pc+absc material, light and easy to carry, low cost; V0 grade flame retardant to ensure safe use of the RS232 serial adapter. Transparent transmission + polling, Modbus + polling two polling modes are optional. Basic function equipped with arm processor base on cortex-m0 kernel, mark, odd, httpd client and modbus tcp work mode.

Serial port baud rate of db9 rs232 adapter can be set from 600bps to 4608kbps, and reliable TCP/IP protocol stack, fast speed and high stability. Din rail mount rs232 to ethernet adapter supports tcp server, UDP server, low power consumption, Even, parity: None, TCP client, UDP client, Space. Upgrade firmware via network. Also equipped with virtual serial port software. Din rail installation this rs232 to ethernet converter server supports DIN rail seat, easy to manage and maintain, direct buckle installation.
BrandARAIERD #ad
ManufacturerUSR IOT #ad
Part NumberAD-SS-DR301

6. DTech


DTech DB9 to RJ45 Serial Adapter RS232 Female to RJ-45 Female Ethernet Converter Compatible with Standard 9 Pin RS-232 Devices

DTech #ad - Db9 female to rj45 modular adapter converts db9 female connector into an rj45 female connector DB9 female - RJ45 Female pinout: 1-1, 8-8, 3-3, 4-4, 2-2, 7-7, 5-5, 6-6, 9-x.

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. Bi-directional db-9 female to RJ-45 female converter comes with thumbscrews for easy and secure connection. Computer laptop, printer, router, PDA, digital CNC machine tool, POS device, Barcode scanner, modem, etc. A simple, cost effective solution to process serial data communication between RS232 COM port devices over inexpensive cat5 cat6 RJ45 network cable. A pair of db9 to rj45 socket coupler can be used a extender to extend rs232 serial signals up to 65ft.
BrandDTech #ad
Manufacturerguangzhouditedianzikejiyouxiangongsi #ad
Part NumberCB0241
Warranty180 days from purchase date



RJ45 to RS232,LFHUKEJI DB9 9-Pin Serial Port Female to RJ45 Female Cat5 Ethernet LAN Console 3.3Ft

LFHUKEJI #ad - Compatible with most routers switch on the market. Please note that your device interface must have the "console" identification character. We do not support devices such as printers that do not have a "console" port.

Oxygen-free copper transmission wire, high-speed clear signal transmission. Connect the equipment serial port to the rj45 “console” port on routers switch, the cable can help engineer through the PC update the network device settings and device understratum operating. Db9 rs232 female to rj45 female cable for tcp/ip network interface with the doual-way conversion, with the serial port network function, support serial data and network data bi-directional transparent transmission. Double-shielded standard to ensure that signal transmission without interference.
ManufacturerGUSHU Ltd. #ad
Height0.71 Inches
Length39.37 Inches
Weight0.12 Pounds
Width0.79 Inches
Part NumberGU13

8. Horsebiz


USR-TCP232-410s RS232 / RS485 Serial to Ethernet Adapter/IP Device Server Ethernet Converter Support DHCP/DNS

Horsebiz #ad - Configure via web browser or virtual com software Interface; Working Temperature: -40 ~ 85¡ãC, Power Consumption: < 1W. Speed: 10 / 100 mbps, mdi / mdix cross direct automatic switching, shell isolation protection; anti-static 2kv, Baud Rate: Rs-232£º600Bps ~ 230.

Dual serial device server: cpu: cortex-m4 120mhz, 2 serial ports: 1 port is rs232, 1 Port is RS485, serial rs485 & rs232 to ethernet Server, 1 RJ45 Ethernet Port. What's in the box: 1 x dual serial device server, 1 x 5V 1A Power Supply, 1 x Female to Female Serial Cable. Support rs232 & rs485 working at The Same Time. Data link protocol: ip£¬tcp£¬udp£¬dhcp£¬dns£¬http£¬Arp£¬Icmp£¬Web Socket£¬Httpd Client. 4kbps£¬rs-485£º600bps ~ 1Mbps; 1. 5kv electromagnetic Isolation, Lightning Protection.
BrandHorsebiz #ad
ManufacturerJinan USR IOT Technology Limited #ad
Height0.98 Inches
Length3.54 Inches
Weight0 Pounds
Width3.31 Inches
Part NumberUSR-TCP232-410S

9. BGNing


Serial RS232 RS485 to WiFi 802.11 b/g/n and Ethernet ConverterUpgrading Version of USR-WIFI232-610

BGNing #ad - Have router function. Support Modbus gateway. Support WatchDog. Certificate of fcc, rohs, ce, teLEC and ISO9001.
BrandBGNing #ad
ManufacturerJinan USR IOT Technology Limited #ad
Height0.98 Inches
Length3.39 Inches
Width3.25 Inches
Part NumberUSR-W610

10. zdyCGTime


DB9 9-Pin Serial Port Female&Male to RJ45 Female Cat5/6 Ethernet LAN Console(15CM/6Inch) 2Pack, zdyCGTime RJ45 to RS232 Cable

zdyCGTime #ad - Please note:can only be used in pairs to work 2 at the same time, please read the instructions carefully before buyingThis cable can be converted to DB9 9-Pin serial port, can not be used alone, DB9 port used to connect to the computer host or a variety of monitors.

They cannot be used as you would any other similar adapter. Size:15cm/6inch color: black features:(2 per pack dB9 Female to RJ45 Female cable and DB9 Male to RJ45 female cable. Please note: this is not eia/tia-561 or similar common pinout. Requires no external power, easy and Convenient to use. These units can only be used when paired together. The rs232 signal is transmitted over the network cable, When using this adapter, it is recommended to use within a distance of 1-15 meters. Save money by using a cat5 cable versus a DB9 cable. Makes running cables easier due to RJ45 being thinner.
BrandzdyCGTime #ad
ManufacturerzdyCGTime #ad
Part Number7545826609