usb serial adapter from $19.95 only at serial adapter source www.USBSERIAL.com
2x 422/485 USB 477
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2x 422/485 USB

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USB to Dual Serial port converter with DB9 connectors. RS-422/RS-485 Optical Isolation & Surge Protection
Features : USB-2COMi-SI-120V (120 volt, 60 hz version): USB to dual serial port converter with DB9 (9-pin male) connectors. RS-422/RS-485) Comes with a USB cable & power supply (120 volt, 60 hz). This model...
Part No. USB-2COM-I-SI | View Details
$149.89
USB-2COM-SI-M - 2-Port RS-232 USB-to-Serial Adapter, with Optical-isolation and Surge Protection, Metal Case
Features : USB-2COM-SI-M - 2-Port RS-232 USB-to-Serial Adapter, with Optical-isolation and Surge Protection, Metal Case Features Adds two industrial RS-232 serial port with optical isolation by connecting t...
Part No. USB-2COM-SI-M | View Details
$149.89
USB-2COMi-M USB to Dual RS-232/RS422/RS-485 Industrial Adapter
Features : VScom USB-2COMi-M USB to 2 RS422/485 ports adapter Serial ports on USB allow further use of existing devices, even when the computer doesn't offer serial ports. The high speed serial port with th...
Part No. USB-2COMi-M | View Details
$149.98
USB2-4COM-SI-M - 4-Port RS-232 USB-to-Serial Adapter, with Optical-isolation and Surge Protection, Metal Case
Features : Adds four industrial RS-232 serial ports with optical isolation by connecting to a USB port 2000V DC optical isolation 25KV ESD surge protection Installed as standard Windows COM port ...
Part No. USB2-4COM-SI-M | View Details
$229.89
USB to dual serial port converter with DB9 (9-pin male) connectors. RS-422/RS-485
Features : USB-2COMi l Adds two high speed RS-422/485 ports via USB connection. l 384 byte receive buffer. l 128 byte transmit buffer for high data throughput. l Auto transmit buffe...
Part No. USB-2COM-I | View Details
$99.89

usb serial adapter from $19.95 only at serial adapter source www.USBSERIAL.com