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    DB9M/RJ-45,Modular Adapter
    Product # 1151
    In Stock This item should ship tomorrow (1/22/2018) if ordered within 7 hours 14 minutes

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    DB9M/RJ-45,Modular Adapter


    • DIY solution for using 8 conductor Cat5 cables to extend your Serial (DB9)* connections
    • 8 pin adapter

    *DB9 (common name) a.k.a DE9 (proper designation)

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    4.7 / 5.0
    13 Reviews
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    as described
    Monoprice, best price, reliable, shipped quickly!

    PROS: works as intended
    March 25, 2011
    As described
    Exactly as pictured. Unbeatable price!
    February 8, 2009
    Great for making a connection work
    This adapter works beautifully. I have a projector that I need to communicate with serially. I've got phoenix connectors on my control device and a DB9 to propriety connection on the projector side. In between I'm running CAT5 and needed to adapt from RJ45 to DB9. In comes this piece...perfect!

    Would have been nice to have a pinout labeled, but a multimeter solved the problem quickly.

    PROS: Easy to work with. Connection seems sturdy and reliable.

    CONS: Would have been nice to have a pinout diagram.
    December 9, 2010
    excellent adapter for making special cables
    I used these adapters to make straight-through cables, null-modem, roll-over, and APC UPS compatible cables. Some required soldering, but the modular setup of these adapters made setting up custom pin-outs a breeze.
    February 1, 2010
    August 28, 2013
    Delivery was prompt. Product matched description and does what it should. Highly recommend Monoprice and the product.
    May 6, 2014
    Great to use as RJ45 breakout cable
    I use these for breadboard projects without the DB9 terminal, because they are convenient to use as RJ45 breakout cables, with pinned ends already made for easy insertion into screw terminal strips.
    The wires are on the short side, but the price is right.
    November 5, 2009
    No problems
    The quality is fine and the price is great. I had to wait a few months for it to be in stock.

    PROS: It works


    CONS: Limited stock?
    Exactly what I was looking for at a great price. Once again, Monoprice comes through.

    PROS: Good quality, works great, arrived as advertised.

    CONS: No wiring diagram for common pin outs.
    September 14, 2012
    Can't beat Monoprice for what you need!
    Exactly what I needed, at a fair price, and fast shipping.

    PROS: Good pricing
    Fast shipping

    CONS: None
    August 3, 2011


    In Stock This item should ship tomorrow (1/22/2018) if ordered within 7 hours 14 minutes