Quick tech specs
  • effective solution to connect serial printers terminals modems POS devices and other serial equipment
  • Lifetime Warranty
  • RJ45 to DB9 Adapter/ RJ45 to Serial RS232 Adapter / RJ-45 Female to DB9 Male
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Know your gear

Using modular adapters with inexpensive silver satin or flat oval twisted pair wire has become a popular way to run client server applications. Needing to connect dumb terminals on the desktop back to a central patch panel or directly to a MUX via RS232, many network planners have implemented modular adapters as the most cost effective way to complete the connections.
Whether used in a wiring closet or throughout the office, color-coded modular adapters lend easy identification and differentiation to your cable plan. By color coding your connections, you cut down on troubleshooting time while taking full advantage of the benefits of this modular adapter approach. These modular adapters are not functional until they are assembled. There is not a universal way to assemble them, so contact your hardware manufacturer for details.
Availability: 57 units In Stock

Customize your gear

As you assemble your hardware, configurable options may change or become unavailable.

Better Together

C2G RJ45 Female to DB9 Female Serial RS232 Modular Adapter - Gray
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C2G RJ45 Female to DB9 Female Serial RS232 Modular Adapter - Gray is rated 5.00 out of 5 by 4.
Rated 5 out of 5 by from Great product. Adaptable for application Have ordered many of these before. Used to program phone systems and computer interfaces.
Date published: 2009-12-05T00:00:00-05:00
Rated 5 out of 5 by from Excellent vendor LIS interface for Lab equipment; doing it ourselves saved thousands of dollars.
Date published: 2012-08-14T00:00:00-04:00
Rated 5 out of 5 by from Great Product Worked perfect at converting Cat 5e to serial for machine communication to a PC.
Date published: 2009-12-16T00:00:00-05:00
Rated 5 out of 5 by from fast delivery, easy to assemble Very easy to assemble with no tools required; clear pin out provided on product web page. Trying to remove an RJ45 connector from the RJ45 side of the adapter is a little difficult as the connection is quite secure and the long screws to secure the adpter to a male DB9 plug get in the way of trying to depress the tab to release the RJ45 connector (I have thick fingers), so it would be nicer if the screws weren't so long or if the RJ45 port/jack was rotated 90 degrees within the adapter to allow easier access to the RJ45 connector tab; however, the connection is strong and has no chance of becoming disconnected by accident, plus I imagine it will become easier to remove the connector with continued use as I get used to it.
Date published: 2014-11-10T00:00:00-05:00