4 Port

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Serial Adapters - Offering a wide variety of USB to Serial Adapters, USB CAN, and IO Cards providing up to 32 ports

4-Port RS-232 USB to Serial Adapter – Octopus Cable DIN Rail

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Port COunt

4 Port Serial Adapters

4 port USB 2.0 to Serial Industrial Adapter for business or rugged industrial use with mounting options for stability while in operation. We offer many different styles and form factors to support any serial application.

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USB to RS232 Industrial Serial Adapter Compact Industrial RS232 Serial Adapter bringing 4 DB9 RS232 Ports from one simple connection. Helps expand your system COM…

Model# USB2-4COM-M-CBL

$109.95

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USB to Serial Adapter for RS422 and RS485 Applications The USB-4COMi-SI-M is a USB to Quad RS-422 485 Optical isolated serial adapter and is designed for…

Model# USB-4COMi-SI-M

$384.95

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USB to RS232 Serial Adapter USB 2.0 Serial Adapter with Optical isolation and surge protection is available on each serial port and is individually optically…

Model# USB2-4COM-SI-M

$274.95

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