RP-SMA Extension Cable: 12FT, 15FT, 17FT Male to Female Extender Low Loss


In stock
0.60 LBS

RP-SMA Extension Cable

One end has a RP-SMA female connector, and the other end has a RP-SMA male connector.

We offer two options of thickness of cable (both are double-shielded, with a black jacket): 400 series and 200-series:

  • 400-series coaxial cable-type (equivalent to LMR-400) has much lower attenuation (signal loss) than 200-series.
  • 200-series coaxial cable-type (equivalent to LMR-200) has much lower attenuation (signal loss) than LMR-100 and RG58.
  • In both cases of coax types, the cables are rated for outdoor use and are also suitable for indoor use.
  • Double-shielding of both 200-series and 400-series enables low signal loss. Both are flexible/easily bendable (200-series is more flexible/bendable). The double-shielding is a major factor in the higher quality of this cable, which translates into lower loss/better performance.

The temperature range for operational use of these 200-series and 400-series cable assemblies is as follows: -31 F ~ +203 F (-35 C ~ +95 C)

Compatibility with wireless standards & applications:

RP-SMA Female Version Options RP-SMA Elongated
The version of the RP-SMA female connector on the left has an embedded o-ring, together with a wider flange, for more secure protection against intrusion of water and/or dust and dirt. It is available for some cable versions on this page, and others by special order. The longer RP-SMA-female version (top in photo) has a 14.5mm threaded section. It is available for some cable versions on this page, and others by special order.


Our RP-SMA extension cables ' range of frequency band compatibility (from 0GHz to 18GHz ), consistently low broadband VSWR, and impedance matching to 50 Ohm cables , makes them compatible, suitable and compliant for all the above applications.

RoHS 3 and REACH compliant: All of our antenna cables and RF adapters are compliant with RoHS 3 and REACH restrictions on content of lead and other heavy metals and toxins.

RP-SMA female and male diameter:

  • RP-SMA female outside diameter is 5/16" (7.9375mm): Accommodates a hex nut (bulkhead nut) with 5/16" nominal outer diameter
  • RP-SMA male inside diameter is 5/16" (7.9375mm) (the inside diameter where the threads are).

RP-SMA Connector Materials Composition:

  • Connector Body:
    • All the cables on this page that are made with 400-series coax have connectors that are nickel-plated brass (on the connector body).
    • All the cables on this page that are made with 200-series coax have connectors that are gold plated brass (on the connector body).
  • Center Contact: Beryllium Copper, Gold Plated
  • Crimp Ferrule: Copper, Nickel Plated
  • Insulators: PTFE
  • Precision machined for low loss in ISO 9001 facilities

RP-SMA Connector: Other Characteristics & Details

  • RP-SMA = Reverse Polarity SMA. Also known as SMA-RP, SMA-R.
  • RP-SMA gender is counter-intuitive: Please observe picture & note it is correct. The gender is referring to the pins inside--not the threads. RP-SMA male has threads on inside.
  • RP-SMA female connector is also called "jack" and RP-SMA-male is also called "plug."
  • RP-SMA is a round screw-type connector, with medium-sized, threaded coupling connectors that are rated for frequencies from the lowest (DC) up to 18GHz.
  • We offer an RP-SMA wrench to assist in installing antennas, cables and adapters with RP-SMA or SMA connector(s).

RP-SMA male to female extension cable is easy and quick to install: The RP-SMA male connector fits the jack on WiFi routers, and the RP-SMA female connector fits the male connector on antennas with an RP-SMA male connector: Most WiFi antennas with an RP-SMA connector have a male connector. The extension cable enables placing the antenna further from the router, in the most suitable place for line of sight.

Data Alliance's high-quality soldered terminations of RP-SMA connectors with soldering provide a low-loss connection with discontinuities kept to a minimum.

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4 Reviews

  • 5
    As good as it gets

    Posted by Andrew Maksym on 16th Feb 2019

    I am very happy I picked-data alliance for purchase, excellent product, very fast delivery and right price.
    Thank you, will shop again.

  • 5
    Exceeded expectations

    Posted by Tony A. on 25th Apr 2018

    This cable was exactly what I needed. I had a wireless security camera with an attached antenna and a weak signal to the DVR. This cable allowed me to attach one end of the cable to the camera and run the cable 17 feet into the attic and connect the antenna to the other end. That short distance and elimination if the antenna being outside provided an extremely strong signal.

    Service, cable quality and speed of shipping exceeded already high expectations. Thank you!!

  • 5
    Just what I needed.

    Posted by Tom Wells on 17th May 2017

    Couldn't find it locally, tried Amazon, they wouldn't ship unless I ordered $25 more. Wouldn't ship alone. Found Data-alliance, ordered and had it within a few days. Impressive service, excellent product. Thanks so much!!!

  • 3
    not a cable tv cord

    Posted by Unknown on 1st Nov 2016

    It's not the size I need for a cable tv cord