Interface Cable SMA to U.FL

This is a 4" connector cable that interfaces U.FL RF connectors to regular SMA connectors. This cable is commonly used to connect larger GPS antennas and quad-band cellular antennas.

Interface Cable SMA to U.FL Product Help and Resources

Connector Basics

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Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.

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Find out where you are! Use this easy hook-up guide to get up and running with the SparkFun high precision GPS-RTK NEO-M8P-2 breakout board.

Three Quick Tips About Using U.FL

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Quick tips regarding how to connect, protect, and disconnect U.FL connectors.

GPS-RTK2 Hookup Guide

January 14, 2019

Get precision down to the diameter of a dime with the new ZED-F9P from u-blox.

SparkFun GPS Breakout (ZOE-M8Q and SAM-M8Q) Hookup Guide

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The SparkFun ZOE-M8Q and SAM-M8Q are two similarly powerful GPS units but with different project applications. We'll compare both chips before getting each up and running.

SparkFun GPS NEO-M9N Hookup Guide

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The u-blox NEO-M9N is a powerful GPS unit that comes in two flavors: with and without a chip antenna. We will quickly get you set up using the Qwiic ecosystem and Arduino so that you can start reading the output!

SparkFun GPS Dead Reckoning NEO-M8U Hookup Guide

April 30, 2020

The u-blox NEO-M8U is a powerful GPS units that takes advantage of untethered dead reckoning (UDR) technology for navigation. The module provides continuous positioning for vehicles in urban environments and during complete signal loss (e.g. short tunnels and parking garages). We will quickly get you set up using the Qwiic ecosystem and Arduino so that you can start reading the output!


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Does this antenna operate on the 2.4Ghz band and is it ideal for the XBee 1mW U.FL Connection - Series 1 (WRL-08666)?

    • This is not an antenna, it is just an adapter cable that lets you use an SMA antenna with a module that only has a u.FL connection. But it will work with the XBee u.FL modules.

  • Are the SMA connectors waterproof?

  • How are people mounting this to a PCB? Are there any angle brackets suitable for PCBs? I don't have an enclosure to mount the bulk head directly to.

  • I'm confused. Is this the cable I need to connect my WiFly shield to an antenna like the black one in my PC's Wi-Fi card? Or do I need the other one sold here (WRL-00662)? Please, help.

    • If this is the Wifly shield you have, then yes, this is the correct cable to connect the module to an external antenna that has an SMA connector on it. The RP-SMA interface cable would also work, but would require an external antenna with an RP-SMA connection.

  • Anybody know if there is a source for a replacement U.FL connector on this? Seems ridiculous to have to buy a whole new cable if the connector goes bad.


    You probably want the RPSMA version I got caught by this!!

    Sparkfun - Can you add a warning in flashing ink?

  • works grate with extending the signal on my droid with your CEL-00290 antenna when driving in places with poor reception
    pop the battery cover off slip this in screw on the SMA and when your mother in law wont shut up you fiddle with the plug breaking up the reception and pull it :3

  • This interface can be use for the XBee Pro 900 XSC U.FL? this model of xbee dont have antenna, that antenna can be used?

  • The best thing we can do here at Sparkfun is be consistent. So we are consistent with the tutorial that we wrote:
    According to the tutorial this cable has a old school female SMA. This is because there is no pin in the center of the connector and the threading is exposed. A female RP-SMA would still have the threading exposed but would have a pin in the center (lousy FCC).

  • Yep, your right, sorry about that!

  • SOMETHING HERE IS WRONG. The photo and description do not match. In the photo, there is a U.FL plug (female tines) on one end and an SMA REVERSE POLARITY Female connector on the other. However, the description clearly believes that this is not the case. The linked datasheet agrees with the PHOTO, not the description (actually it is not entirely clear since it is a multipart number drawing).

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Easy to way to install antennae connector to enclosure, good build quality, just be careful with that small connector.

Extra range for a Raspberry Pi ZeroW

Adding a U.FL connector on the pads provided on the Pi-ZeroW and a gain antenna to a Raspberry Pi Zero-W and greatly increase the range