4-Port USB to RS-232 Serial Adapter Hub
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4 Port USB to RS232 Serial Adapter Hub - Serial Cards & Adapters | StarTech.com
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8-Port USB to RS-232 Serial Adapter Hub
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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
StarTech 4-Port USB to Serial Adapter Hub with COM ICUSB2324X
16 Port USB to RS-232 422/485 Metal Serial Adapter DIN-Rail Mount - Coolgear
DeviceMaster ® Serial Hub 8-Port - Pepperl+Fuchs Comtrol
8-Port Industrial USB to RS-232 Serial Adapter Hub
16 Port RS-232 Rack Mountable USB to Serial Adapter - Coolgear
ATEN UC2324 4-Port USB to Serial RS-232 Hub UC2324 B&H Photo
Startech.Com 8 Port USB to RS232 Serial DB9 Adapter Hub ICUSB2328 | Zoro
Usb To Rs485 Serial Port Hub Photoelectric Isolation Lightning Protection 4 Serial Port 485 Relay Communication Converter - Integrated Circuits - AliExpress
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StarTech.com 8 Port USB to Serial RS232 Adapter - Wall Mount - Din Rail - COM Port Retention -
