![Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics](https://m.media-amazon.com/images/I/5160fZaKSbL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics
![Amazon.com: DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE : Electronics Amazon.com: DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE : Electronics](https://m.media-amazon.com/images/I/61qpnW+zxhL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: DTECH Serial to Ethernet Converter Adapter RS232 RS422 RS485 to TCP IP Device Server Supports DHCP DNS Modbus RTU/TCP 10/100M Power Over Ethernet POE : Electronics
![Amazon.com: ATNEDCVH RS232 RS485 to 4 Ports RS485 Repeater Optical Isolator Industrial Grade, RS485 hub 4 in 1 Out Signal Amplifier Anti-Interference (Blue) : Electronics Amazon.com: ATNEDCVH RS232 RS485 to 4 Ports RS485 Repeater Optical Isolator Industrial Grade, RS485 hub 4 in 1 Out Signal Amplifier Anti-Interference (Blue) : Electronics](https://m.media-amazon.com/images/I/61mAnHIlC8L._AC_UF894,1000_QL80_.jpg)
Amazon.com: ATNEDCVH RS232 RS485 to 4 Ports RS485 Repeater Optical Isolator Industrial Grade, RS485 hub 4 in 1 Out Signal Amplifier Anti-Interference (Blue) : Electronics
![Amazon.com: BUELEC DB9 Female and Male Connector in One Breakout Board,RS232 /RS485/CAN/RS422 with DB9 Connector to Terminal Board Signal Module(2pcsDB9 Female/Male) : Electronics Amazon.com: BUELEC DB9 Female and Male Connector in One Breakout Board,RS232 /RS485/CAN/RS422 with DB9 Connector to Terminal Board Signal Module(2pcsDB9 Female/Male) : Electronics](https://m.media-amazon.com/images/I/71Rz1DbmuFL._AC_UF894,1000_QL80_.jpg)
Amazon.com: BUELEC DB9 Female and Male Connector in One Breakout Board,RS232 /RS485/CAN/RS422 with DB9 Connector to Terminal Board Signal Module(2pcsDB9 Female/Male) : Electronics
![Amazon.com: diewu RJ45 to RS232 RS485 RS422 Industrial Male Converter TCP/UDP Serial RS232 RS485 to Ethernet Device Server : Electronics Amazon.com: diewu RJ45 to RS232 RS485 RS422 Industrial Male Converter TCP/UDP Serial RS232 RS485 to Ethernet Device Server : Electronics](https://m.media-amazon.com/images/I/61Ey64Q4cPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: diewu RJ45 to RS232 RS485 RS422 Industrial Male Converter TCP/UDP Serial RS232 RS485 to Ethernet Device Server : Electronics
![Amazon.com: DTech Bi-Directional Active RS232 to RS485 RS422 Serial Converter with Surge Protection 600W 15KV ESD DB9 to RJ45 Phoenix Contacts Adapter Power Supply TX RX LEDs for Long Haul Data Communication : Amazon.com: DTech Bi-Directional Active RS232 to RS485 RS422 Serial Converter with Surge Protection 600W 15KV ESD DB9 to RJ45 Phoenix Contacts Adapter Power Supply TX RX LEDs for Long Haul Data Communication :](https://m.media-amazon.com/images/I/61ZEcA505eL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: DTech Bi-Directional Active RS232 to RS485 RS422 Serial Converter with Surge Protection 600W 15KV ESD DB9 to RJ45 Phoenix Contacts Adapter Power Supply TX RX LEDs for Long Haul Data Communication :
![Amazon.com: StarTech.com 8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD Amazon.com: StarTech.com 8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD](https://m.media-amazon.com/images/I/818cNg4jSuL._AC_UF894,1000_QL80_.jpg)
Amazon.com: StarTech.com 8 Port Serial Hub USB to RS232/RS485/RS422 Adapter - Industrial USB 2.0 to DB9 Serial Converter Hub - IP30 Rated - Din Rail Mountable Metal Serial Hub - 15kV ESD
![Amazon.com: BUELEC Industrial High Speed USB to RS232/RS485/RS422/TTL 4 in 1 Converter,Magnetic Isolated,Built-in 3000V Dual Isolation Power Module,Two-Way Independent Data Transmission,FT4232 Chipset : Electronics Amazon.com: BUELEC Industrial High Speed USB to RS232/RS485/RS422/TTL 4 in 1 Converter,Magnetic Isolated,Built-in 3000V Dual Isolation Power Module,Two-Way Independent Data Transmission,FT4232 Chipset : Electronics](https://m.media-amazon.com/images/I/81heSXamFoL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: BUELEC Industrial High Speed USB to RS232/RS485/RS422/TTL 4 in 1 Converter,Magnetic Isolated,Built-in 3000V Dual Isolation Power Module,Two-Way Independent Data Transmission,FT4232 Chipset : Electronics
![Amazon.com: RS232/RS485 to Ethernet Converter, 100V‑240V 120MHz Double Serial Ports RS232/485 to Network Port Module, Suitable for Industrial Applications(#1) : Electronics Amazon.com: RS232/RS485 to Ethernet Converter, 100V‑240V 120MHz Double Serial Ports RS232/485 to Network Port Module, Suitable for Industrial Applications(#1) : Electronics](https://m.media-amazon.com/images/I/61poyj0CXrL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: RS232/RS485 to Ethernet Converter, 100V‑240V 120MHz Double Serial Ports RS232/485 to Network Port Module, Suitable for Industrial Applications(#1) : Electronics
![Amazon.com: Serial RS232 RS485 to WiFi 802.11 b/g/n and Ethernet Converter(Upgrading Version of USR-WIFI232-610) : Electronics Amazon.com: Serial RS232 RS485 to WiFi 802.11 b/g/n and Ethernet Converter(Upgrading Version of USR-WIFI232-610) : Electronics](https://m.media-amazon.com/images/I/41lyKbH2rVL.jpg)
Amazon.com: Serial RS232 RS485 to WiFi 802.11 b/g/n and Ethernet Converter(Upgrading Version of USR-WIFI232-610) : Electronics
![Amazon.com: USB to RS485/RS232/TTL Converter Industrial Digital Isolated Converter with CH343G Inside, Multi-Protocol & Multi-Type Conversion, Support Windows 11/10/8.1/8/7 Linux Android Mac etc. : Electronics Amazon.com: USB to RS485/RS232/TTL Converter Industrial Digital Isolated Converter with CH343G Inside, Multi-Protocol & Multi-Type Conversion, Support Windows 11/10/8.1/8/7 Linux Android Mac etc. : Electronics](https://m.media-amazon.com/images/I/61FmisssUaL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: USB to RS485/RS232/TTL Converter Industrial Digital Isolated Converter with CH343G Inside, Multi-Protocol & Multi-Type Conversion, Support Windows 11/10/8.1/8/7 Linux Android Mac etc. : Electronics
![Amazon.com: JUXINICE 2Packs DB9 Serial Adapters No Soldering Needed. D-SUB 9-pin RS232 RS485 Adapter to Terminal Connector Signal Module with Bolts Nuts and Screwdriver (1PCS Male+1PCS Female) : Electronics Amazon.com: JUXINICE 2Packs DB9 Serial Adapters No Soldering Needed. D-SUB 9-pin RS232 RS485 Adapter to Terminal Connector Signal Module with Bolts Nuts and Screwdriver (1PCS Male+1PCS Female) : Electronics](https://m.media-amazon.com/images/I/81DyZL87HqS._AC_UF894,1000_QL80_.jpg)
Amazon.com: JUXINICE 2Packs DB9 Serial Adapters No Soldering Needed. D-SUB 9-pin RS232 RS485 Adapter to Terminal Connector Signal Module with Bolts Nuts and Screwdriver (1PCS Male+1PCS Female) : Electronics
![Amazon.com: Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments : Electronics Amazon.com: Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments : Electronics](https://m.media-amazon.com/images/I/61gPi2PJddL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Waveshare USB to RS232 / RS485 / TTL Industrial Isolated Converter with Original FT232RL Embedded Protection Circuits and Aluminium Alloy Enclosure for Industrial Control Equipments : Electronics
![Amazon.com: Waveshare Industrial RS232/RS485 to Ethernet Converter with Dual Serial Ports High-Speed Low-Power High-Stability Upgradable Easy to Communicate Between RS485 and RJ45 Port Ethernet : Electronics Amazon.com: Waveshare Industrial RS232/RS485 to Ethernet Converter with Dual Serial Ports High-Speed Low-Power High-Stability Upgradable Easy to Communicate Between RS485 and RJ45 Port Ethernet : Electronics](https://m.media-amazon.com/images/I/61bwKpQpkrL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Waveshare Industrial RS232/RS485 to Ethernet Converter with Dual Serial Ports High-Speed Low-Power High-Stability Upgradable Easy to Communicate Between RS485 and RJ45 Port Ethernet : Electronics
![Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics](https://m.media-amazon.com/images/I/51kC8JThzKL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics
![Amazon.com: WITMOTION USB-UART 6-in-1 USB to Serial Converter, Multifunctional (USB to TTL/RS485/232, TTL-RS232/485, 232 to 485), Universal Adapter Module with CP2102 Compatible with Windows 7/8/10,Linux, Arduino : Electronics Amazon.com: WITMOTION USB-UART 6-in-1 USB to Serial Converter, Multifunctional (USB to TTL/RS485/232, TTL-RS232/485, 232 to 485), Universal Adapter Module with CP2102 Compatible with Windows 7/8/10,Linux, Arduino : Electronics](https://m.media-amazon.com/images/I/51Ap3CQcI9L._AC_UF894,1000_QL80_.jpg)
Amazon.com: WITMOTION USB-UART 6-in-1 USB to Serial Converter, Multifunctional (USB to TTL/RS485/232, TTL-RS232/485, 232 to 485), Universal Adapter Module with CP2102 Compatible with Windows 7/8/10,Linux, Arduino : Electronics
![Amazon.com: DTech RS232 to RS485 Converter, 2 Pack Bidirectional RS-485 to RS-232 Serial Adapter with Terminal Block for Industrial Long Haul Data Communication : Electronics Amazon.com: DTech RS232 to RS485 Converter, 2 Pack Bidirectional RS-485 to RS-232 Serial Adapter with Terminal Block for Industrial Long Haul Data Communication : Electronics](https://m.media-amazon.com/images/I/51Q0IICCG0L._AC_UF894,1000_QL80_.jpg)
Amazon.com: DTech RS232 to RS485 Converter, 2 Pack Bidirectional RS-485 to RS-232 Serial Adapter with Terminal Block for Industrial Long Haul Data Communication : Electronics
![Amazon.com: COMMFRONT Industrial RS232 to RS485 Converter, Port-Powered, Built-in 120-Ohm Terminator, 600W Surge and 15kV Static Protection : Electronics Amazon.com: COMMFRONT Industrial RS232 to RS485 Converter, Port-Powered, Built-in 120-Ohm Terminator, 600W Surge and 15kV Static Protection : Electronics](https://m.media-amazon.com/images/I/61p4LXTuaeL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: COMMFRONT Industrial RS232 to RS485 Converter, Port-Powered, Built-in 120-Ohm Terminator, 600W Surge and 15kV Static Protection : Electronics
![Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics](https://m.media-amazon.com/images/I/5160fZaKSbL.jpg)
Amazon.com: DTech RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge : Electronics
![Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics](https://m.media-amazon.com/images/I/51kC8JThzKL.jpg)
Amazon.com: DTECH RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size : Electronics
![Amazon.com: StarTech.com USB to Serial Adapter - 2 Port - RS232 RS422 RS485 - COM Port Retention - FTDI USB to Serial Adapter - USB Serial (ICUSB2324852) : Electronics Amazon.com: StarTech.com USB to Serial Adapter - 2 Port - RS232 RS422 RS485 - COM Port Retention - FTDI USB to Serial Adapter - USB Serial (ICUSB2324852) : Electronics](https://m.media-amazon.com/images/I/61dJ-LqtjpL._AC_UF1000,1000_QL80_.jpg)