HF5122 IoT 2-Port Serial Server RS232/485/422 to Ethernet Modbus RTU to TCP modu

StarTech 2 Port USB to RS232/422/485 Serial Adapter with COM Retention, Gray

Aten UC2322 2-Port USB to Serial RS-422/485 Hub

Aten UC4852 2-Port USB to Serial RS-422/485 Hub

StarTech 2 Port USB to RS232/422/485 Serial Adapter with COM Retention, Gray

StarTech 1 Port RS232 Serial-to-IP Ethernet Device Server

StarTech 1 Port RS232 Serial Over IP Ethernet Device Server, 115.2Kbps Maximum Data Transfer Rate, DB-9 (9 Pin; D-Sub) Male/RJ-45 Female Connectors, Beige

StarTech 1 Port RS232 Serial Over IP Ethernet Device Server, Beige

Lenovo Brainboxes 1 Port RS232 Ethernet to Serial Adapter

StarTech 1 Port Poe RS232 Serial Ethernet Device Server

Axxon 1 Port Native PCI Express (PCI) RS232/422/485 Serial Host Adapter

Axxon 1 Port USB to 4 Ports RS232 Serial Adapter with 36" Quadplex Cable (HD44M to 4x DB9M)

Axxon 1 Port Native PCI Express (PCI) RS232/422/485 Serial Host Adapter

Axxon 2 Port Native PCI Express (PCIe) RS232 Serial Card Adapter with 12" Cable (DB25M to 2x DB9M)

Axxon PCI Express (PCIe) 2 Port RS232 Serial Card Adapter with 36" Dualplex Cable (DB25M to 2xDB9M)

StarTech 10/100Mbps Ethernet to USB 2.0 Network LPR Print Server

StarTech 1 Port PoE RS232 Serial Ethernet Device Server

StarTech 4 Port USB to RS232 Serial DB9 Adapter Hub

iOptron RS232 to RJ9 Serial Cable

Axxon Native PCI Express 2 Port RS232 Serial Card Adapter

Tera Grand 6' Premium USB 2.0 - RS232 Serial DB9 Adapter Cable, Female Jack Nuts

Axxon 2 Port EPP/ECP Parallel Port + Dual RS232 Serial PCI Express Controller Card

Axxon PCI / PCI-X 133 MHz Dual RS232 (921kbps) Serial Port + 1 Parallel Port Adapter with 36" Cable (HD44M to 2x DB9M + DB25F)

Tera Grand 6' Premium USB 2.0 - RS232 Serial DB9 Adapter Cable, Male Thumbscrews

Tickas 8CH RS485 Relay Modbus RTU Protocol Serial Port Remote Control Switch for PLC Control Board

Axxon 1 Port USB to 4 Ports RS232 Serial Adapter with 36" Quadplex Cable, HD44M to 4x DB25M

Axxon 1 Port USB to 4 Ports RS232 Serial Adapter

HF2211 Industrial Modbus Serial R 32/RS485/RS422 WiFi/Ethernet Converter Module

Axxon Native PCI Express (PCIe) 1 Port RS232 Serial Card Adapter with DMA

Axxon EPP/ECP Parallel Port + RS232 Serial PCI Express Controller Card

Aten IC485AI RS-232 to RS-422/RS-485 Bidirectional Converter