CDEbyte Modbus RTU I/O Network Modules with Serial Port RS232 Analog 4AI+2DO MA02-XACX0420 Watchdog Anti-crash IoT DC8-28V

ESTINK PLC Communication LED Display PLC Display LED Serial Port Meter Communication 4‑Digit DC5‑36V For MODBUS‑RTU RS485

StarTech 1 Port PCI RS232 Serial Adapter Card with 16550 UART

StarTech 1 Port USB to RS232 DB9 Serial Adapter with Detachable 6' USB A to B Cable

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

StarTech 6' 1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

StarTech 2 Port PCI RS232 Serial Adapter Card with 16550 UART

StarTech 1 Port Low Profile Native RS232 PCI Express Serial Card with 16550 UART

StarTech 2 Port PCI Low Profile RS232 Serial Adapter Card with 16550 UART

StarTech 3.3' 1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI

Tera Grand 6' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Male Thumbscrews

Tera Grand 3' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Male Thumbscrews

StarTech 16.9" 1 Port USB to RS232 DB9 Serial Adapter Cable

Lectrosonics RS232 Serial Cable with DB-9 to 3.5mm Mini-Phone Stereo Plug

Tera Grand 10' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Male Thumbscrews

Tera Grand 3' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Female Jack Nuts

2pcs I2c 1602 Lcd Display With Blue - 16x2 Character Serial Interface For , Arduino & Diy Projects, , Board, Electrical Iot, Internet Of Things

StarTech 1' USB to RS232 Serial DB9 Adapter Cable with COM Retention

Tera Grand 10' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Female Jack Nuts

Tera Grand USB 2.0 to RS232 Serial DB9 Converter with 33" USB Extension Cable

Tera Grand 6' Premium USB 2.0 to RS232 Serial DB9 Adapter Cable with Female Jack Nuts

StarTech 3' USB to RS232 DB9 Serial Adapter Cable with DB25 Adapter

StarTech 3' USB A Male to RS232 DB-9 Male Serial Adapter Cable

ClearOne 1' DB9 RS232 Serial Female to Phoenix Euroblock Adapter for CONVERGE Pro 2 Touch Panel Controller

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

iOptron RS232 to RJ9 Serial Cable

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

KanexPro 6' USB-A to DB9 RS232 Serial Adapter

Tera Grand 3' Premium USB 2.0 - RS232 Serial DB9 Adapter Cable, Female Jack Nuts

StarTech 24" Internal USB Motherboard Header to Serial RS232 Adapter

Hall Research USB-RS232-1 USB to RS-232 Serial Converter for PC and Notebook