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USB to Serial RS-232 DB9 Adapter FTDI Chipset w/ 15kV ESD Protection, Windows 11 Support - Coolgear
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2-Port USB 2.0 to RS-232 DB-9 Industrial Serial Adapter w/ 15kV ESD Surge Protection - Coolgear
283984-001 - HP 2nd Serial Port Adapter for dc7600/dc7100 Desktop
HP 2nd Serial Port Adapter with Bracket - Hardware Nation
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HP Z440 Full Height 2nd Serial Port & Cable 641397-001 611901-001 628646-001 [628646-001] - $19.99 : Professional Multi Monitor Workstations, Graphics Card Experts
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2-Port Professional RS-232 USB 2.0 to Serial Adapter 5ft.
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USB to serial RS232 adapter with two ports
2 Port USB to RS232 Serial Adapter Cable - Serial Cards & Adapters | StarTech.com
2 Port USB 2.0 to Serial Adapter Hub - Serial Cards & Adapters | StarTech.com
HP Z440 High Profile 2nd Serial Port Adapter w/ Cable 628646-001 611901-001 | eBay
QVS DB9 Female to DB9 Male Splitter Cable (8") CC317Y B&H Photo
