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Home USB USB to Serial Converters

USB to Serial Converters

Connect RS-232 serial devices to USB ports with a USB to serial adapter. We carry all types of USB to RS-232 converter models including ruggedized, in-line, panel mount, isolated, multi-port, single port, and more.
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USOPTL4DR-LS
USB to RS-422/485 Converter - 1 port, isolated, locked serial number, DIN mount (USB cable included)
  1. USB-serial conversion; Adds a COM port to your PC
  2. 3000 Volts optical isolation; 15 kV ESD protection
  3. RS-422/485 data rates up to 921.6 Kbps
  4. Locked Serial number feature
  5. DIN rail mount (panel mount option)
  6. USB bus powered - no power supply required
  7. Removable terminal block
  8. USB cable included, 0.9 m (3 ft)

$147.29

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USO9ML2-2P
Isolated USB 2-Port to RS-232 Converter (USB cable included)
  1. Connect multiple RS-232 devices to your USB port
  2. 2000 V RMS optical isolation; 15 KV ESD surge protection
  3. RS-232 data rates up to 460.8 kbps
  4. Supports USB 2.0 (backward compatible), 12 Mbps
  5. Desk or panel mount (flanges attached)
  6. USB port-powered or external power supply (not included, sold separately)
  7. High retention USB port ensures reliable connections
  8. Includes one USB cable, 1 m (3 ft)

$210.12

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USO9ML2-LS
Isolated USB to RS-232 Converter - Locked Serial Number (USB cable included)
  1. 2 kV Isolation
  2. ESD Protection - 4 kV Contact, 8 kV Air
  3. Locked Serial number feature
  4. Compact In-Line Case
  5. USB 2.0 Full Speed Compatible (12 Mbps)
  6. RS-232 Data Rates Up to 460.8 Kbps
  7. USB Bus Powered
  8. USB cable included, 0.9 m (3 ft)

$132.00

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USO9ML4
USB to RS-422/485 DB9 Inline Converter (USB cable included)
  1. Adds a COM Port to Your PC
  2. USB High Retention Connector Type B
  3. USB 2.0 Full Speed Compatible (12 Mbps)
  4. USB Bus Powered (<100mA)
  5. DB9 Male RS-422/485 Connector
  6. Automatic Send Data Control
  7. Compact In-Line Case
  8. USB cable included, 0.9 m (3 ft)

$125.66

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USO9ML2-4P
Isolated USB 4-Port to RS-232 Converter (USB cable included)
  1. Connect multiple RS-232 devices to your USB port
  2. 2000 V RMS optical isolation; 15 KV ESD surge protection
  3. RS-232 data rates up to 460.8 kbps
  4. Supports USB 2.0 (backward compatible), 12 Mbps
  5. Desk or panel mount (flanges attached)
  6. USB port-powered or external power supply (not included, sold separately)
  7. High retention USB port ensures reliable connections
  8. Includes one USB cable, 1 m (3 ft)

$315.18

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485USB9F-2W-LS
USB to RS-485 2-Wire Miniature Converter - Locked Serial Number (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. Data rates: 921.6 kbps (RS-485); 12 Mbps (USB)
  3. Quick, convenient in-line installation
  4. USB port powered
  5. USB 2.0 (12 Mbps) compatible
  6. Small – fits easily into laptop bag; perfect for field service applications
  7. Locked Serial number feature
  8. (1) USB cable included

$93.73

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485USB9F-4W
USB to RS-485 4-Wire Miniature Converter (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. Data rates: 921.6 kbps (RS-485); 12 Mbps (USB)
  3. Quick, convenient in-line installation
  4. USB port powered
  5. USB 2.0 (12 Mbps) compatible
  6. Small – fits easily into laptop bag; perfect for field service applications
  7. Note: 4-wire configuration only
  8. USB cable included, 0.9 m (3 ft)

$93.73

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USB-4604B-BE
4-port RS-232 Serial to USB Converter
  1. Full compliance with USB V1.1 and V2.0 specifications.
  2. RS-232 port supported
  3. Transmission speed up to 921.6 kbps
  4. Bus-powered; no need for external power supply
  5. Plug & Play installation
  6. No additional IRQs or I/O ports required
  7. Hot swap function support

$205.00

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485USB9F-4W-LS
USB to RS-485 4-Wire Miniature Converter - Locked Serial Number (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. Data rates: 921.6 kbps (RS-485); 12 Mbps (USB)
  3. Quick, convenient in-line installation
  4. USB 2.0 (12 Mbps) compatible
  5. USB port powered
  6. Small – fits easily into laptop bag; perfect for field service applications
  7. Locked Serial number feature
  8. Note: 4-wire configuration only
  9. USB cable included, 0.9 m (3 ft)

$93.73

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USB-4604BM-BE
4-port RS-232/422/485 Serial to USB Converter
  1. Full compliance with USB V1.1 and V2.0 specifications.
  2. RS-232/422/485 port supported
  3. Transmission speed up to 921.6 kbps
  4. Automatic RS-485 data flow control
  5. Bus-powered; no need for external power supply
  6. Plug & Play installation
  7. No additional IRQs or I/O ports required
  8. Hot swap function supported

$310.00

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USO9ML2
Isolated USB to RS-232 Converter (USB cable included)
  1. 2 kV Isolation
  2. ESD Protection - 4 kV Contact, 8 kV Air
  3. Compact In-Line Case
  4. USB 2.0 Full Speed Compatible (12 Mbps)
  5. RS-232 Data Rates up to 460.8 Kbps
  6. USB Bus Powered
  7. USB cable included, 0.9 m (3 ft)

$132.00

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USOPTL4-2P
Isolated USB 2-port to RS-422/RS-485 Converter (USB cable included)
  1. Connect multiple RS-422/485 devices to your USB port
  2. 2000 V optical isolation; 15 KV ESD surge protection
  3. RS-422/485 data rates up to 921.6 kbps
  4. USB: 12 Mbps, USB 2.0 (backward compatible)
  5. USB port-power or external source (power supply not included, sold separately)
  6. High retention USB ports hold connections securely
  7. Removable serial terminal blocks for easy wiring
  8. USB cable included, 1.8 m (6 ft)

$210.12

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ADAM-4562-AE
1-port Isolated USB to RS-232 Converter
  1. Full compliance with USB V1.1 specifications
  2. Transmission speed up to 115.2 kbps
  3. Isolation protection 3000 VDC provided
  4. Automatic RS-485 data flow control
  5. No external power supply necessary; the hub derives its power from the USB port
  6. Plug & Play installation
  7. No additional IRQs or I/O ports required
  8. Hot swap function supported

$112.00

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USB-4671-A
GPIB USB Module
  1. Supports USB 2.0
  2. Convenient portable design
  3. Bus-powered
  4. Complete IEEE 488.1 & 488.2 compatibility
  5. Full driver, library, and example support, including; Visual C++®, Visual C#®, Visual Basic®, Visual Basic .NET®, Delphi®, and LabView
  6. Provides powerful and easy-to-use configuration utility
  7. No GPIB cable required for instrument connection
  8. Plug & Play installation and configuration
  9. Support industrial standard VISA

$564.00

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QSU2-100
High-speed USB 2.0 ,RS-232 Adapter (USB cable included)
  1. Not Recommended For New Installations. Replacement recommendation is Model BB-USR604.
  2. Expands one USB port to 4 USB ports (USB 2.0, 1.1 compatible)
  3. Data rate: up to 921.6 kbps
  4. Desktop-style enclosure, plug-and-play compatibility
  5. Bus powering – no external power required
  6. High-speed UARTS with 1KB FIFOs boost data rates
  7. Enumerates as standard COM port
  8. Full modem, hardware and software flow control
  9. USB cable included, 0.9 m (3 ft)

$220.00

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QSU2-400
High-speed USB 2.0, RS-232/422/485 Adapter (USB cable included)
  1. Not Recommended For New Installations. Replacement recommendation is Model BB-USR604.
  2. Expands one USB port to 4 USB ports (USB 2.0, 1.1 compatible)
  3. Data rate: up to 921.6 kbps
  4. Desktop-style enclosure, plug-and-play compatibility
  5. Bus powering – no external power required
  6. High-speed UARTS with 1KB FIFOs boost data rates
  7. Enumerates as standard COM port
  8. Full modem, hardware and software flow control
  9. Software selectable RS-232/422/485
  10. USB cable included, 0.9 m (3 ft)

$250.00

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