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Home Serial Data Communications 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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232USB9M
USB to RS-232 DB9 Miniature Converter (USB cable included)
  1. Connect RS-232 devices to your USB port
  2. RS-232 data rates up to 921.6 Kbps
  3. In-line installation
  4. FCC, CE approved
  5. USB port powered
  6. USB 2.0 (12 Mbps) compatible
  7. Perfect for Field Service Applications
  8. USB cable included, 0.9 m (3 ft)

$73.13

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232USB9M-LS
USB to RS-232 DB9 Miniature Converter - Locked Serial Number (USB cable included)
  1. Connect RS-232 devices to your USB port
  2. RS-232 data rates up to 921.6 Kbps
  3. In-line installation
  4. USB port powered
  5. Locked Serial number feature
  6. FCC, CE approved
  7. USB 2.0 (12 Mbps) compatible
  8. USB cable included, 0.9 m (3 ft)

$73.13

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485USB9F-2W
USB to RS-485 2-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. USB cable included, 0.9 m (3 ft)

$93.73

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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. USB cable included, 0.9 m (3 ft)

$93.73

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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. USB cable included, 0.9 m (3 ft)

$93.73

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485USBTB-2W
High Retention USB to RS-485 TB Converter (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Windows 98, ME, 2000, XP, Vista, 7 (32/64 bit), 8 (32/64 bit)
  9. USB cable included, 0.9 m (3 ft)

$93.73

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485USBTB-2W-LS
USB to RS-485 TB 2-Wire Mini Converter - Lock Serial Number (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Locked serial number feature
  9. USB cable included, 0.9 m (3 ft)

$93.73

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485USBTB-4W
USB to RS-485 TB 4-Wire Mini Converter (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Windows 98, ME, 2000, XP, Vista, 7 (32/64 bit), 8 (32/64 bit)
  9. USB cable included

$91.00

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485USBTB-4W
USB to RS-485 TB 4-Wire Mini Converter (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Windows 98, ME, 2000, XP, Vista, 7 (32/64 bit), 8 (32/64 bit)
  9. USB cable included

$93.73

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485USBTB4W-LS
USB to RS-485 TB 4-Wire Mini Converter - Lock Serial Number (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Locked Serial Number feature
  9. USB cable included, 0.9 m (3 ft)

$91.00

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485USBTB-4W-LS
USB to RS-485 TB 4-Wire Mini Converter - Lock Serial Number (USB cable included)
  1. Connect RS-485 devices to your USB port
  2. RS-485 data rate up to 921.6 Kbps
  3. USB 2.0 (12 Mbps) compatible
  4. Convenient, quick inline installation
  5. Compact size fits into laptop bags; perfect for field service
  6. USB port-powered
  7. High retention USB port grips USB cables; Removable terminal block for easy wiring
  8. Locked Serial Number feature
  9. USB cable included, 0.9 m (3 ft)

$93.73

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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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TTL3USB9M
USB to 3.3V TTL Miniature Converter (USB cable included)
  1. Connect 3.3V TTL devices to your USB port
  2. TTL data rate: up to 460.8 Kbps
  3. Quick, convenient in-line installation
  4. USB port-powered
  5. Small easily fits in laptop bag; Perfect for field service
  6. USB 2.0 (12 Mbps) compatible
  7. Supports Windows 98, ME, 2000, XP, Vista, 7 (32/64 bit), 8 (32/64 bit)
  8. USB cable included, 0.9 m (3 ft)

$78.28

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UC232A
USB TO RS-232 DB9 CONVERTER
  1. Supports automatic handshake mode
  2. Up to 230 kbps data transfer rate
  3. Supports remote wake-up and power management
  4. 96 byte buffer each for upstream and downstream data flow
  5. Easy installation
  6. Works with cellular phones, PDA, digital cameras, modems, and ISDN terminal adapters
  7. Frees your RS-232 ports for other uses
  8. No IRQs, no IRQ conflicts

$30.00

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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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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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USO9ML2-4P
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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BB-USO9ML2-A
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)

$135.96

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