DB9, F/F, Null Modem Adaptor
    Product # 1137
    DB9, F/F, Null Modem Adaptor
    Product # 1137
    In Stock This item should ship tomorrow (10/24/2016) if ordered within 4 hours 43 minutes

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    DB9, F/F, Null Modem Adaptor

    RS-232, DB 9 pin female to female null modem.

    Null modems are used to connect two computers or other devices together to achieve file transfer. Null modem connectors are different from straight through connectors because the receive and transmit conductors are crossed.

    This is a miniature null modem with female connectors on each side.

    *Monoprice continually strives to improve its product line to bring our customers the best products available. Therefore, changes may be made to listed specifications without prior notice. Item received may not match photo or specs shown

    4 Reviews

    87.5% of the reviewers recommend this product


    Great price, awesome compact size.

    • egoods,
    •  Sterling Heights, MI 
    • 5/8/2016 6:17:30 AM

    Pros: cheap

    Cons: none

    Needed an easy way to turn my USB/Serial cable into a full null modem, wanted something compact and easy to just install on the wire and forget about. This did the trick, worked exactly as advertise. Wouldn't hesitate to buy it again.

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    May not have worked and may not be the device

    • Anonymous,
    •  Moorpark, CA 
    • 5/31/2015 6:48:27 PM

    Pros: Small and compact.

    Cons: Not sure it worked.

    Purchased for use with a 4X2 HDMI full matrix switch. The desktop utility required a working RS232 connection. With cabling/device requirements, an adapter of this configuration was needed. Once installed, however, the utility program still couldn't pick up the RS232 connection. As the switch was not working will enough either, it was returned and the use of this piece no longer mattered.

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    Love these things

    • rmt,
    •  Orlando, FL 
    • 5/26/2013 5:11:17 AM

    Pros: size

    Cons: none

    Great for quickly changing serial cable to null for the gear that requires it to be controlled. I don't even bother changing the cables anymore, just put one of these on the end and it's done!

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    • Anonymous,
    •  Moline, IL 
    • 4/13/2011 7:03:17 PM

    Pros: Price.

    Cons: none

    This piece is works great at a great price!. Thanks Monoprice!

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