4 Port Professional RS-232 USB 2.0 to Serial Adapter
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8-Port USB 2.0 to RS-232 DB-9 Industrial Serial Adapter w/ FTDI Chipset & 15kV ESD Surge Protection - Coolgear
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Keyspan RS232 to USB-A Adapter, DB9, 3-ft Cable | Eaton
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4-Port USB to RS-232 Serial Adapter Hub
8-Port USB to RS-232 Serial Adapter Hub
4 Port Serial RS-232 Hub w/ FTDI Chipset & RX/TX LED Indicators
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USB to RS232 Adapter with PL2303 Chipset, CableCreation 6.6 ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black - Walmart.com
ATEN UC2324 4-port USB to Serial RS-232 Hub
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4-port USB to Serial RS232 Converter
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