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RS232 Adapters

0 out of 5
  • Multi-colored & Modular
  • Easy to swap out
  • Male & Female, 25pin or 9pin
  • For use with RS232 cable (not Ethernet)
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Product Description

Since different styles of CNC machines may need different wiring, we’ve got you covered. Our RS232 Adapters work with our RS232 Cables to create a modular, plug-and-play cabling system.

Each RS232 Adapter is pinned out for specific controls. You just have to let us know the control and we’ll make sure you get the correct RS232 Adapter.

On the PC side, we offer standard 9pin adapters, as well as 25pin for older PC’s or switch boxes.  For more info on our cables see our RS232 Cable Page 

For a list of our RS232 Serial Cables compatibility, click here.

More about our Cabling Solutions: Ever have the misfortune of re-stringing thousands of feet of cable to combat noise and data transmission problems? SFA has you covered. Enjoy the most reliable and powerful RS232 cable available (worldwide) with an entire cable solution.

No longer will your maintenance department have to run around trying to find a replacement cable in an emergency. You won’t have to worry about properly terminating new cable ends to match your controller’s RS232 pin outs. Call 877-611-5825 for more info!

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Delivery and Returns Information


  • Most products are stock items and can ship same day if the order is received before 1:00PM Pacific Standard Time.
  • For large quantity orders, please contact our sales staff for availability and delivery schedule estimation.
  • All orders are shipped FOB San Diego. For international order, any duties, taxes, and broker fees are the sole responsibility of the recipient customer.
  • UPS is our only shipping carrier, and other carriers will delay shipments. We will ship on your UPS Account if available. Please refer to UPS Website for terms and conditions and guarantee delivery times to your location.


Please inform our Customer Service department immediately if your merchandise arrives damaged. Retain all original packaging and shipping boxes. Proof of damage - usually in the form of digital photographs - is required to confirm a damage claim.

Return Policies

  • Product returns in the original packaging condition within 30 days of purchase will qualify for a credit and is subject to a 15% restocking fee and less shipping charge. Shop Floor Automations is responsible for ground shipping charge to ship repaired or replaced units after receiving the failed unit back to the customer. The customer is responsible for all shipping costs to Shop Floor Automations. An RMA number must be obtained before shipping back the returned unit.
  • Any unauthorized item or Product will be refused, or the entire shipment may be refused.
  • Open and licensed software is not returnable.
  • Product failed and reported within 72 hours after receiving will be considered as a DOA product.
  • The customer can request to purchase a new unit for replacement and to return the failed unit for credit without a restocking fee charge. It is the customer's responsibility for all shipping costs.


  • Shop Floor Automations provides a 90-day warranty on all Products purchased from Shop Floor Automations unless otherwise stated. It is the Buyer's responsibility to directly receive the manufacturer's warranty service from the product manufacturer after the first one year.
  • The warranty does not extend beyond the original Buyer of Products from Shop Floor Automations. Shop Floor Automations shall have no obligation to the Buyer with respect to providing any warranty on any Products for which Shop Floor Automations has not received full payment from the Buyer.
  • Shop Floor Automations does not warrant any Products that have been subject to improper use, abuse or physical damage, alterations, modifications, additions, improvements, installation, or attachments. Removal of any serial number or warranty labels will also void such warranty of Product.

RMA Return Instructions

  • Please contact Shop Floor Automations via phone or email to obtain an RMA approval.
  • RMA number shall be issued by the Application Engineer and with an email sent to the customer. The RMA number is valid for 30 days.
  • Please mark the RMA No. on every package to be returned. All returned merchandise must have this pre-assigned number. Otherwise, Shop Floor Automations has the right to refuse it.
  • All static-sensitive parts must be packaged in an anti-static bag. Shop Floor Automations reserves the right to refuse RMA service and return the item(s) to the senders that do not follow this requirement.
  • Ship your defective product prepaid in original packaging with a copy of the RMA email. All claims for incomplete, defective, and missing accessories or products must be made within 72 Hours once merchandise is received.
  • You will receive an email stating when the RMA has been closed with notification of action taken.