Modem Rs232
Overview
Product sourcing insights & recommendations
The RS232 modem market in 2026 is defined by a strategic shift from simple point-to-point communication to advanced hybrid connectivity Versitron. While the RS232 protocol itself is a legacy standard, modern RS232 modems are increasingly integrated with fiber optics, 5G cellular networks, and Ethernet gateways to bridge aging industrial infrastructure with high-speed digital backbones LinkedinVersitron.
Market Trends & Insights
* Industrial IoT (IIoT) Integration: The primary driver is the demand for legacy-to-modern conversion. Engineers are using RS232 modems to connect legacy SCADA and PLC systems to 10-Gigabit fiber and cellular IoT platforms VersitronLinkedin.
* Technological Shift: There is a clear trend toward Fiber Optic RS232 modems due to their immunity to electromagnetic interference (EMI) and ability to extend signals up to 20km Versitron.
* Market Valuation: The cellular modem market, which includes industrial RS232 variants, is projected to reach $32.84 Billion by 2034 with a strong CAGR of 19.4% Insightaceanalytic.
* Preferred Frequencies: For wireless serial bridges, 900MHz remains the preferred frequency for 2026 due to its superior penetration in industrial environments compared to 2.4GHz Industrialmonitordirect.
Product Analysis & Pricing
The current product landscape focuses on "hardened" devices with surge protection and protocol transparency.
| Product Category | Typical Price Range | Key Features |
|---|---|---|
| Serial to Ethernet Servers | $13 – $50 | WiFi/RJ45 ports, Modbus support, MQTT/SSL AlibabaAlibaba |
| Fiber Optic Modems | $19 – $72 | SFP modules, 20km range, EMI immunity AlibabaAlibaba |
| Cellular (4G/5G) Modems | $20 – $80 | SIM card slots, Cat4/Cat1 speeds, M2M focused AlibabaAlibaba |
Rs232 To Ethernet Serial Device Server Modem
Products · 3 lists
ZLWL SS2031 Industrial Smart Serial RS232 RS485 to Wifi Ethernet RJ45 Port Serial Device Server
Shenzhen Chilink Iot Technology Co., Ltd.🇨🇳CN5 yrs
UART to Ethernet Serial Server RS485 RS422 RS232 RJ45 HTTP TCP RTU UDP PLC Long Distance Modbus Gateway Modem NB114
Hunan Teng Xin Technology Co., Ltd.🇨🇳CN5 yrs
Ebyte E810-DTU(1RS1E) Hot Sale RS232 / RS485 /RS422 Serial to Ethernet Adapter IP Device Server Ethernet Converter
Voltnexus (HK) Limited🇭🇰HK1 yr
Smart Wireless Communication RS232 RS485 Multiple Serial Port Data Terminal Unit Modem Wi-Fi Serial Server
Shenzhen Yujie Technology Co., Ltd.🇨🇳CN6 yrs
Original New ZLAN5103 Serial Port Server RS232/485/422 to Ethernet TCP Module Good Price Electronic Components
Shenzhen Sinosky Electronics Co., Ltd.verified🇨🇳CN9 yrs
PUSR USR-N520 2 Port Serial Device Server RS232/RS485 to Ethernet Converter Modbus RTU to Modbus TCP
Shenzhen Shengdingtong Technology Co., Ltd.verified🇨🇳CN1 yr
dtu serial server rs232/485 to wifi ethernet modbus networking communication 2211 module
Ethernet to RS232 TCP IP Converter 256 Loads Multi-host Modbus Gateway 10/100M Auto MDI-MDIX RJ45 Ethernet to Serial Device
Shenzhen Diewu Technology Co., Ltd.🇨🇳CN13 yrs
USR-N520 Serial RS232 TCP/IP Server RS485 RS422 Ethernet Converter Network Printing Watchdog Supported DC 5-36V 2-Year Warranty
Jinan Usr Iot Technology Limitedverified🇨🇳CN14 yrs
Mport3101 1-port RS232/485/422 Serial to 100M Ethernet Server & Modbus Gateway
Wuhan Unique Mechanical And Electrical Equipment Co., Ltd.🇨🇳CN4 yrs
DTECH Ethernet Gateway Serial Device Server RS232 to Ethernet Converter Serial Server
Guangzhou Dtech Electronics Technology Co., Ltd.verified🇨🇳CN21 yrs
WiFi Serial Device Server RS232/RS485/RS422 Serial Port to Ethernet Serial Port Server HF5111B
Shenzhen Chipsrsun Technology Co., Ltd.🇨🇳CN1 yr
WiFi Serial Device Server RS232/RS485/RS422 Serial Port to Ethernet Serial Port Server HF5111B
Shenzhen Pinkuo Trading Co., Ltd.🇨🇳CN2 yrs
WiFi Serial Device Server RS232/RS485/RS422 Serial Port to Ethernet Serial Port Server HF5111B
Shenzhen Dongjiang Chuangfu Technology Co., Ltd.🇨🇳CN1 yr
4-Port RS485/422/232 to 2-Port Ethernet Serial Device for Industrial Server Use
Dongguan Tian Xia Zhi Lian Industrial Co., Ltd.🇨🇳CN6 yrs
Industrial DTU Serial Port Server RS232/RS485/RS422 to WiFi/Ethernet Converter Module for Automation Data Transmission
Xi 'an Hanzhi Technology Co., Ltd.🇨🇳CN4 yrs
RS232 Serial Port Server RS232 to Ethernet Port TCP/IP Networking Communication Device with Management
Shenzhen Xiongfa Weiye Electronics Co., Ltd.🇨🇳CN13 yrs
Serial Device Servers RS232/RS485/RS422 Serial Port to TCP/IP Ethernet Network Communication Converter
Shenzhen Winstar Technology Co., Limited🇨🇳CN15 yrs
RS232 Serial Server to Ethernet Serial Device TCP/IP Networking Communication with Management
Shenzhen Quanxinsheng Technology Co., Ltd.🇨🇳CN1 yr
Bulk Supply MOXA NPort 5110 1PC New NPort5110 Serial Device Server Expedited Shipping Easy Installation
USR-TCP232-306 RS232 RS485 RS422 to Ethernet Converter MQTT IoT Modbus Gateway Serial Device Server DC 36V
Industrial Grade Mini Serial to Ethernet TCP/IP LAN Converter RS485 RS232 RS422 Serial Port Server with POE Optional
Hang Zhou Fei Chang Technology Co.,Ltdverified🇨🇳CN16 yrs
Low cost Serial RS232 RS485 RS422 to Ethernet TCP IP Device Server serial to ethernet converters MC501
Beijing Micro Control Industrial Gateway Technology Co., Ltd.🇨🇳CN5 yrs
Multi-Function WIFI Serial Device RS232/485/Ethernet Server Industrial PC Human Machine Interfaces 1024x768 Resolution ZLAN
Letpcba Limited🇭🇰HK1 yr
MOXA NPort 5150 Serial Server Taiwan Original With Original Packaging Industrial Control Accessories
Neutral Label, No Brand Logo, OEM Ethernet RJ45 to RS232 RS485 RS422 Serial Converter TCP/IP Communication & Networking Product
Shanghai ZLAN Electronics Co. Ltd.verified🇨🇳CN3 yrs
USR-N520 Serial RS232 RS485 to Ethernet TCP/IP Converter with Modbus RTU to TCP and Web Server
Shenzhen Guocanshengye Technology Co., Ltd.🇨🇳CN1 yr
ZYSY RS232/485 to WiFi POE ETH (B) Industrial-grade serial server WiFi and Ethernet Modbus gateway MQTT RTU TCP
RS232 Serial port 9 pin to Ethernet server iot communication development board TCP/UDP protocol
Shenzhen Lixiang Electronic Components Co., Ltd.🇨🇳CN5 yrsRS232 Serial port 9 pin to Ethernet server iot communication development board TCP/UDP protocol
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Sources & References
26 sources cited · Verified industry data & reports
Market Dynamics: Projected Growth in the RS232 Modem ...
Market Dynamics: Projected Growth in the RS232 Modem Market with a CAGR of 8.6% from 2026 to 2033 · More articles by The Foresight Foundry.
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