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

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Product/Description
Price/Buy
Isolated USB to 2-Port RS232 / 422 / 485 Serial DB-9 Adapter
Features :

Isolated RS232 / 422 / 485 Serial Signal

The CM-422485DB-i2 Isolated USB to 2-Port serial interface adapter features 2.5kV isolation to ensure 2 serial devices by DB-9 port connected re...
Part No. CM-422485DB-i2 | View Details

$129.99
2 Port USB to RS-422 /485 Optical Isolated Adapter
Features :

USB to RS-422 / RS-485 technology is the perfect compliment to serial communication to further the use of existing devices, even when the computer doesn’t offer serial ports. The USBG-2COMi-S...
Part No. USBG-2COMi-SI-M | View Details

$139.99
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

...
Part No. USB-2COM-SI-M | View Details

$149.89
USB2-4COM-SI-M - 4-Port RS-232 USB-to-Serial Adapter, with Optical-isolation and Surge Protection, Metal Case
Features :

The USB2-4com-si-m 4 port USB to RS232 DB9 Serial port has Optical Isolation and Surge Protection all housed in a professional Metal Case that can be Surface mounted. Great for Labs, Medical applic...
Part No. USB2-4COM-SI-M | View Details

$199.89
USB-2COMi-M USB to Dual 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 ...
Part No. USB-2COMi-M | View Details

$84.99
USB to Dual Serial RS-422/RS-485 Port Converter with Isolation/Surge
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...
Part No. USB-2COM-I-SI | View Details

$89.89
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 tra...
Part No. USB-2COM-I | View Details

$99.89

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