Best Usb Type A Serial Adapters in 2026

This is an industrial USB to RS485 converter with original FT232RL inside. It features embedded protection circuits such as lightning-proof, resettable fuse, ESD protection, and TVS diode, etc. It's pretty small in size.

The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.

USB to RS485 communication. Adopt original FT232RL, fast communicating, stable and reliable, better compatibility.

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.

DB9 9 pin male to female serial converter - RS232 optical Isolator for RS232C system communication serial port optic isolation protector product

Mini RS232 opto isolator is suitable for terminal devices using 3 wire system (TXD, RXD and GND), such as modem, router, multi-user system and satellite receiver, etc

DE9 RS232 isolated interface adapter protects against the effects of electrostatic discharge, surge, ground loop, faulty wiring and lightning

Industrial grade isolated RS232 to RS485 converter for High Speed data communication between DB9 serial COM port and RS-485/422 device (wired via RJ45 socket or 6 position terminal board)

Provides Power Supply Isolation (optical isolation voltage 2500Vrms 500DC continuity); RS-232 interface - 15kV ESD protection; RS485/422 end with each line of 600W lightning surge protection

Port-powered or by DC 9V-24V power adapter; LED indicators for troubleshooting - easy check in the status of power connection and balanced differential signal status

Standards: RS-232C, RS-485/RS-422 TIA/EIA ● Connector: RS-232 DB9 female input, RS-422/RS485 DB9 male output, RJ-45

Protection: RS-422/RS-485 each line 600W surge , lightning protection ● Working mode: asynchronous half-duplex or full-duplex

LEDs for indicating PWR TXD, and RXD activity ● Transmission media: twisted-pair or shielded cable

【Bidirectional Transparent Transmission】This WiFi to Serial Converter Can Realize Bidirectional Transparent Transmission Between Rs232/Rs485 and Wifi, Wifi And Ethernet, Serial and Ethernet.

【Rugged Aluminum Housing】This Serial to WIFI Ethernet Device Server Delivers a Reliable Performance That Can Be Used in Almost Any Environment,Such As Operating Temp -40℃～ 85℃.

【Basic Function】Usr-W610 Supports Modbus Rtu to Tcp in Bi-directional, Modbus Polling.Supports Timing and Timeout Restart Function, Which Makes The System Run More Stable.Supports Web Server, Setup Software, Serial/Network AT Command to Configure Module.Support Web Page to Upgrade Firmware.

<b>Dual Serial Device Server:</b> 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.

<b>Speed: </b>10 / 100 Mbps, Mdi / Mdix Cross Direct Automatic Switching, Baud Rate: Rs-232º600Bps ~ 230. 4Kbps¬Rs-485º600Bps ~ 1Mbps; 1.5Kv Electromagnetic Isolation, Shell Isolation Protection; Anti-Static 2Kv, Lightning Protection.

Modbus Gateway: Modbus RTU to Modbus TCP / Modbus Pollinig

[Powerful Functional Design] Ethernet serial adapter is not only an RS485/RS232 to ethernet converter,but also is an serial to WiFi converters or wifi to ethernet adapter.It can realize the bi-directional transparent data transmission between RS232/RS485, WiFi and Ethernet. Through simple configuration via Web Server or setup software can assign working details, realize serial data and TCP/IP data package transparent transmission.Build-in routing function,support wired or WiFi networking method.

[Multiple Protection] WIFI to ethernet converter has passed EFT test, when there is instantaneous high current in the circuit (such as lightning, power switch, etc.), it can ensure that the device hardware is not damaged.Support electrostatic protection,prevent electrostatic damage the ethernet to wifi converter,such as dust electrostatic,electric arc environment.Built in Watchdog,ensure that the hardware circuit runs stably for 24 hours.

[Basic Function] Support RS232/RS485 to 802.11 a/b/g/n WLAN Serial Device Server.Support TCP Server/TCP Client/UDP Server/UDP Client/https Client mode.Support AP, STA, AP+STA.Support identity packet function, heartbeat packet function,Websocket function, timeout reset function and timing reset function.Support Web Server, setup software, serial/network AT command to configure module.Support hardware reload.Support usrlink.

[Upgraded Scheme] This 4 ports networking serial device server is 2-port RS232 and 2-port RS485 serial to Ethernet converter. It adopts Cortex-M7 solution,which has a main frequency up to 400MHz, powerful performance, fast transmission speed, and high reliability. 5-36V wide voltage input, with reverse polarity protection and ESD electrostatic protection.all serial adapters passed electrical fast transient test and lightning surge immunity test.

[Basic Function] RS232 RS485 serial adapter equipped with a deeply optimized TCP/IP stack, built in hardware watchdog and a variety of keepalive mechanisms,so that it keeps online all the time,automatically restarts when the device goes down.4 ports IOT server supports TCP Client, TCP Server, UDP Client, UDP Server and HTTPD Client working modes, achieves data transparent transmission via simple configuration.Supports configuring parameters via built-in webpage,serial and network AT commands.

[Data encrypted transmission & Cloud management] Adopt two-way certificate verification + SSL transmission encryption mechanism to ensure data security. Transmission protocols such as TCP, HTTP, and MQTT can achieve eavesdropping, anti-tampering, and anti-counterfeiting.RS232 RS485 ethernet converter can fully access the cloud platform for device and data management, and easily realize applications such as edge computing, data forwarding, and remote operation and maintenance.

Bidirectional RS232 to RS485 RS422 converter converts RS-232 signals to RS-485 or RS-422 signal, cable can be connected to either a terminal block or an RJ45 network port

600W lightning surge protected for RS485/RS422 link and 15KV static protection for RS232 link, protects your value devices against high voltage

Powered serial adapter with TX, RX and power indicators enables you to easily know the status of sending or receiving data respectively (110/240V AC to 9V DC power supply included)

Standards: RS-232C/ RS-485, /RS-422 EIA/TIA ● RS-232 DB9 female connector input; RS-422/485 10 bits terminal block output

Port protection: RS-232 ±15KV ESD protection; RS-422/485 each line 600W surge, lightning protection

Isolation: isolated voltage 2,500VRMS 500VDC ● Working mode: asynchronous half-duplex or full-duplex