4 Port Professional RS-232 USB 2.0 to Serial Adapter
Black Box 2-Port USB to RS-232, RS422/485 Adapter / Converter 2 x DB9 Male - IC1020A - -
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USB 2.0 Serial RS232 Adapter Box Industrial 8-Port FTDI Chip 921.6Kbps | Cooldrives
USB to 2-Port Isolated RS-232, RS-422, RS-485 DB9 Serial Interface Adapter - Sealevel
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StarTech 4-Port USB to Serial Adapter Hub with COM ICUSB2324X
4 Port Professional RS-232 USB 2.0 to Serial Adapter
4-Port USB to RS-232 DB9 Serial Adapter w/ Prolific Chipset
Amazon.com: StarTech.com 4 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2324I) : Everything Else
4-Port USB to RS-485/422 Hub - UC4854, ATEN USB Converters | ATEN Corporate Headquarters
USB to 8-Port RS-232 RJ45 Serial Interface Adapter - Sealevel
![CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]](https://www.cartft.com/image_db/CTF4XRS232USB.jpg "CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]")
CTF4XRS232USB (Automotive/Industry 4-port RS232 USB adapter, FT4232HL, 9-48VDC) [ USB-Hub ]
8-Port USB to RS-232 Serial Adapter Hub
4-Port USB to RS-232 Hub - UC2324, ATEN USB Converters | ATEN Corporate Headquarters
16 Port USB to Serial RS232 Adapter Hub - Serial Cards & Adapters
StarTech.com 4 Port Serial Hub Adapter USB to RS232/RS485/RS422 Converter - ICUSB234854I - -
Tera Grand USB 2.0 to RS232 Serial DB9 Adapter USB2-RS232WN-06
8 Port Serial Hub USB to RS232 Adapter - Serial Cards & Adapters
4-port USB to Serial RS232 Converter
Amazon.com: StarTech.com 8 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention - FTDI USB to DB9 RS232 Hub (ICUSB2328I) : Everything Else
