sku: 9011456 | Moxa
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PC/104-Plus bus, 4-port RS-422/485 module, 2 kV optical isolation, 0 to 55°C

Click for more product from the Moxa CB-134I

  • United States

    Express shipping, delivered duty paid (DDP).

  • United Kingdom

    Next day shipping from our comprehensive UK stock.

  • European Union

    Express shipping from our extensive Dutch stock.

  • International

    Express shipping, anywhere in the world.

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The CB-134I is a PC/104-Plus bus, 4-port RS-422/485 module with 2 kV optical isolation, 0 to 55°C operating temperature.

  • 6 kbps maximum baudrate for fast data transmission
  • On-chip software flow control
  • Serial interface is DIP switch selectable
  • Onboard Tx and Rx LED indicators for each port
  • Wide-temperature model available for -40 to 85°C environments
The CB-134I PC/104-Plus modules have 4 RS-422/485 ports, for use with PC/104-Plus CPU boards that accept the PC/104-Plus expansion interface. Optional DB9 and DB25 connection cables are available. Versatile driver support makes the modules suitable for a wide range of applications. The CB-134I modules provide a reliable, high-performance solution for multiport serial communication.

Secure Purchasing

As an ISO9001-2015 certified, Trustwave certified and only utilizing Market-leading payment solutions we ensure our customer’s personal details are always protected. Through our e-commerce website we ensure we offer convenient online ordering. You can choose your desired payment currency at the product page:




UK & EU Value Added Tax (VAT) is levied on the sale of goods or services by UK & EU businesses.VAT must only be paid if:Orders are delivered to the UK or Netherlands. Orders are delivered to non-VAT registered companies within the EU


As part of Industrial IT’s commitment to our customers, any item that is subject to section 301 import tariffs has had the cost included within our website pricing, meaning there will be no additional costs to our US partners ordering online.

Rest of the World

Industrial IT cannot be held responsible for any duties and taxes relating to our customer's country. Paying these will be the responsibility of the customer.

Bank Wire Transfer

You can request a Pro forma at the payment stage of the checkout process. Once requested the Pro Forma will be automatically emailed to you containing our full bank details. Once full payment is received your order will be processed.

Credit Card Payments

We accept all major Mastercard and Visa cards via Braintree. Braintree is a leading payment provider processing over 1 billion transactions a quarter.
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Either via your PayPal account or simply you can check out as a guest. This method accepts all the major card providers including American Express. We can also email you a PayPal invoice at your request.

Credit Accounts

Our customers can request Credit Accounts to help support their cashflow and projects. Credit Accounts can be applied for via your Sales Representative or contacting us. Credit Accounts are subject to Finance Department approval.

For more shipping information please refer to our shipping information page:

Shipping calculator

Utilize our shipping calculator to help you understand your shipping costs before you purchase.

If you need express shipping, please contact us. All the above are based on working days and are subject to availability. Delivery estimates do not include product lead times. We cannot guarantee transit times to overseas territories or remote locations. Orders must be placed before 15:00pm GMT or will be sent the following working day.

Returns Policy

Our priority is to ensure you are 100% happy with any purchase from Industrial IT, in the rare occasion you need to return the item, you will find our policy details below.


The team at Industrial IT is here to support you in finding the correct solution for your project, we are also lucky to supply market-leading IIOT solutions that have a very low failure rate.
If you would like to return, exchange, or have received a faulty item you can utilize our local warehouse RMA’s and our expert customer service team for support.

Return & Exchange Policy for Non-Defective Return

  • Must be within 14 days of invoice date.
  • Shipping costs are the responsibility of the customer.
  • All original boxes, packaging, documentation, and accessories must be returned in the same condition they were received.
  • Restocking fees will apply, please see terms and conditions for more information.

Return Policy for Defective Item

Please see our RMA policy for all out-of-the-box defective items.


All returns must have been purchased directly from Industrial IT Systems and must be authorized through our RMA process and policies.
For more information on returns, please see our terms and conditions.
Click here to submit an RMA.

Trusted By

Diversified utilize Industrial IT’s global warehousing to ensure they avoid delays or unforeseen costs from shipping and importation. Diversified 

Industrial IT’s ability to ship worldwide enabled Google to save time and money on their project by facilitating each of their worldwide offices from a single supplier. Google 

Industrial IT’s flexible approach helped Roche when their project was stalling, going the extra mile to get them the products they needed quickly. F. Hoffmann-La Roche