ATEN UC232A USB to Serial Converter (5-Pack) UC232A5PK B&H Photo
Aten Uc232a Usb To Rs232 Db 9 Pin Pda Serial Db9 Port Adapter Pc Mac Drivers Usb-a Type Convert Rs-232 Serial Interface - Pc Hardware Cables & Adapters - AliExpress
4-Port USB to RS-232 Hub - UC2324, ATEN Converters | ATEN U.S.A.
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USB Serial 12 Inch RS232 Serial Adapter FTDI Chip with LED
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USB to Serial port RS232 DB9 Genuine ATEN (UC-232A) - homenet48
4 Port Professional RS-232 USB 2.0 to Serial Adapter w/Nuts
ATEN USB to PDA/Serial (DB9) Adapter w/ PC & Mac Drivers - Newegg.com