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Quality USB Serial Adapters for Windows 7, 8 and Windows 10 USBGear Providing the Best USB Serial Adapters in the Market. Offering FTDI USB Serial Chip sets in many products.

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  1. USB to Serial RS-422/RS-485 Industrial Single Port Adapter w/FTDI

    The USB-COMi-TB USB-to-RS-422/485 Industrial Serial Adapter is designed to make industrial communication port expansion quick and simple. Connecting to a USB port on your computer or USB hub. Learn More
  2. RS-232 LED link Tester DB-9 Male to DB-9 Female
    $21.98

    RS-232 LED link Tester DB-9 Male to DB-9 Female, test your Serial RS-232 signals and make sure your COM ports are working properly and is sending and receiving properly. Learn More
  3. DB9 to Terminal Block 5 Pin Passive Adapter

    Regular Price: $21.95

    Special Price $9.88

    Passive DB9 Connect to 5-Pin Terminal Converter, The US-485TBP is a serial DB9 to Terminal signal converter from RS232 to a RS485 interface designed for PC, Workstation, Thin Client or. Learn More
  4. RS232 Serial to RS422/485 w/2000V DC Optical Isolation and Surge
    $99.99

    Convert RS232 to RS422 or RS485 with this serial converter using the male and female DB9 connector. Mount the converter on flat surfaces or DIN Rail. Learn More
  5. RS232 to RS422/485 Serial Converter with Switching Power Adapter

    Serial RS232 to RS422 and RS485 converter with LED indicator for power and serial signals, full versatility is controlled by a built- in software configuration menu, which is accessed via terminal programs. RS422 with hardware handshake RS485 by ART (automatic receive and transmit). Learn More
  6. RS-232 to TTL Converter 5V output

    The GM-1010-B interface converter converts data (TXD,RXD) of RS-232C to TTL/COMS; the TTL electrical level is 0-5V, without an external power supply.

    • Works with all communication software, plug & play
    • Baudrate: 300bps-115.2Kbps
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  7. RS-232 to RS-485/422 Port-Powered w/Optical Isolation

    The GM-10127-B is a port-powered converter with optoelectronic isolation. It complies with RS-232C, RS422, and RS-485 standards; it converts single side RS-232 signal to a balanced differential RS-422 or RS-485 signal.

    • Standards: RS-232C/ RS-485/ RS-422 EIA/TIA
    • RS-422/485 6 bits terminal block output
    • Port protection: RS-232 ±15KV ESD protection;
    •  RS-422/485 600W surge protection
    • Isolation: 2,500Vrms isolated voltage, continuous 500VDC
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  8. RS-232 to RS-485/422 Converter with Surge Protection

    Great for RS232 communication between a PC and a device that needs an RS422 or RS485 protocol. The GM-1042E-B converter is compatible with RS-232C, RS-485/422 standards. It converts RS-232 signals into balanced differential RS-485 or RS-422 signals.

    • Standards: RS-232C, RS-485/422 EIA/TIA
    • Baud rate: 300bps-115.2kbps
    • Transmission distance: 1,200m (RS-485/422); 5m (RS-232)
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  9. Mini RS-232 to RS-485 Converter

    The converter is compatible with RS-232C and RS-485 standards. It converts RS-232 signals into balanced differential RS-485 signals.

    • Standards: RS-232C,RS-485 EIA/TIA
    • Built in terminal block
    • Baud rate: 300BPS-115.2KBPS
    • Transmission distance: 1,200m(RS-485), 5m(RS-232)
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  10. RS-232 to RS-232 Mini Port-Powered Isolator

    The GM-1011-B is an RS-232 serial port optoelectronic isolator. It adopts advanced optoelectronic isolation technology, maximally protects RS-232 serial interface devices from bad environment damage, such as ground loop circuit voltage, surge, lightning, ESD, hot-plug and electromagnetic interference, etc.

    • Standards: RS-232 & CCITTV.24 asynchronous protocol
    • Power: from RS-232(TXD, RTS or DTR)
    Learn More

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