Edimax Wifi Adapter1719293751-11417571007-11871033215-12045399473-1

Edimax EW-7811Un 150Mbps 11n Wi-Fi USB Adapter

3.8 out of 5 based on 196 customer ratings
(192 customer reviews)

Wireless Mini Nano Size USB Adapter, Up to 150Mbps 802.11n Wireless data rates. Perfect for Raspberry Pi2 & Pi3. Supports Windows, Mac OS & Linux.


1 in stock



Product Description

EW-7811Un is a nano USB wireless adapter that supports maximum range and speed. Despite the size, this tiny USB adapter supports higher data rate of up to 150Mbps when connecting with wireless 802.11n device which is 3 times faster than your normally 11g connection. You can just plug it into computer’s USB port and enjoy incredible high-speed wireless network access. This is for sure the trendiest piece of upgrade you can make to your wireless network.

  • Supports 150Mbps 802.11n Wireless data rate – the latest wireless standard. Permits users to have the farthest range with the widest coverage. (Up to 6 times the speed and 3 times the coverage of 802.11b.).
  • Power Saving designed to support smart transmit power control and auto-idle state adjustment
  • Supports WMM (Wi-Fi Multimedia) Standard so that you can let different types of data have higher priority. It would allows better streaming of real-time data such as Video, Music, Skype etc
  • Includes multi-language EZmax setup wizard
  • Spec Standards IEEE 802.11n; backward compatible with 802.11b/g Wi-Fi Certified. Security 64/128 bit WEP Encryption and WPA-PSK, WPA2-PSK security; WPS compatible IEEE 802.1X
  • Port 1 x 2.0 USB Type A. Wireless Data Rates Up to 150 Mbps. Modulation OFDM: BPSK, QPSK, 16-QAM, 64-QAM, DSSS. Frequency Band 2.4GHz – 2.4835GHz. Antenna internal chip antenna
  • Channels (FCC) 2.4GHz : 1~11. Power Input USB Port (Self-Powered). Dimensions 0.28″ x 0.59″ x 0.73″. Temperature 0 -40 degree C (32-104 degree F). Humidity 10 ~ 90% Non-Condensing. System XP/Vista/Win7, Mac, Linux

Compatible With: Windows 7/Vista/XP, Mac OS, Linux.

Additional Information














2 years part and labor

192 reviews for Edimax EW-7811Un 150Mbps 11n Wi-Fi USB Adapter

  1. 5 out of 5


    I’m personally very weary about UB WIFI adapters. My parents had one of their personal PC at home and they would call me up to help them reconfigure it occasionally. The firmware was a nightmare, the support was lacking, and for some reason the little device ran insanely hot. Overall it left me with a bitter impression for USB WIFI adapters.

    Fast forward to present day, I needed a USB WIFI adapter for my Raspberry Pi 2. I decided to pick up this model after doing some research and comparing reviews to other-like devices. I could not be more pleased with the results. The range is surprisingly good. The one my parents had could barely get two bars going through one floor – this little guy gets dang near 5 bars all over my 2 story house. To put in perspective: my router is in my attic on the 3rd floor, I can go to the basement and still have a strong enough signal to work. That is simply amazing.

    Throughput is also another surprising factor. The one my parents had you could tell was struggling. Loading something as simple as Amazon would take a century. This device is lightning fast and allows as much throughput as your ISP/Router is designed to throw out.

    Overall I am extremely pleased with this device. If you are looking for an adapter for your own PC or something for a Pi device like I did – buy this.

  2. 5 out of 5


    I have two of these now they are one of the only mini adapters I have found that is reliable. The drivers are on a mini cd which I don’t particularly like but it does keep the packaging small. I usually install the drivers from an external DVD drive just to be safe. There was one time a computer had a fast disc drive that actually popped the disc out of the drive bay and I had to stop the drive from closing so that it didn’t harm the disc nor the drive. Your milage may vary. The drivers install easily just follow the prompts and restart. The thing I love is that once done Edimax uses Windows built in wireless manager and does not put their own on top like old Dell machines used to. You can plug it in the back of the machine or side of your laptop and you can pretty much forget it is there.

  3. 5 out of 5


    No more wires!!! To save on installation coat I ran wires myself thruout the house to connect to the Wi-Fi. This purchase eliminated that whole set up I had going on. I plugged one into my desktop in my room my sons desktop in his room and my daughters in her room which are not close to each other and I eliminated all wires in my home with the exception of the base. Im very happy. No issues. On my older computer I did have to use the installation disk but the newer computers was simply plug and play.

  4. 5 out of 5


    I have had several different USB wireless adapters (five or six?), and this one is definitely my favorite. It’s a great mix of high quality and small size. You may think that if you get one of those larger adapters that are about the size of a pocket knife and stick out that you would be getting a better antenna or receiver or something because if it’s bigger it must be better, right? Not the case. After trying different wireless adapters over the years on many different computers, this is the only one I’ll buy now. I can happily report that it works with Windows 7, 8, and 10 with no issues, and no drivers required for installation. I get great speeds with this adapter, and again love that it’s tiny. There’s a reason why it’s such a top seller.

  5. 4 out of 5


    Not super fast, but something that Sprint doesn’t tell you when you buy their $20/month Personal Hotspot is that Dell wireless cards don’t work with it. At all. I was on the phone with Sprint tech for two hours and we tried EVERYthing, but then I had an idea, pulled this baby out of my briefcase, disabled the onboard NIC, and it connected to the Hotspot in two seconds. So if you have Sprint’s Personal Hotspot and a Dell laptop, you have to get one of these.

  6. 5 out of 5


    First, a bit of context. My Macbook Pro 13-inch, Mid 2009 has been having a tough go of late. A few components have been failed and replaced. After updating to OS X Capitan the comp could no longer recognize the wifi card. I bought this unit and spent a few hours trying to get it to work. I first downloaded what looked like the most recent driver (I think it was 10.8), but it didn’t work. Please be careful to only install the correct driver, as it may be difficult to uninstall some of the packages. After a little more digging I found the driver for Capitan and it words great!!

    To locate the Capitan driver: (1) google edimax 7811 drivers; (2) click on the entry titled “Driver and Manual Downloads page – Edimax US”; (3) locate and download “EW-7811Un 802.11n Nano USB adapter Driver/Utility for Mac OS 10.7/10.8/10.9 /10.10 /10.11”. After installation this little unit is humming along nicely.

  7. 5 out of 5


    I have two of these now. I have never had a bit of trouble from either of them. In fact, they seem to be able to get signal better than the built in wireless in my laptop. Definitely the best option for under $20.

  8. 4 out of 5


    I purchased a couple of these USB WiFi adapters to use with some Raspberry Pi 2 projects. The adapter is working fine for me using Raspbian Wheezy on my Raspberry 2s. I have not experienced any connectivity issues. I ran a ping test for a couple hours to be sure.

    Setting this up on the raspberry pi was fairly easy, basically involving editing /etc/network/interfaces to set the SSID, password, static vs dhcp, etc. Plenty of instructions on the web to point you in the right direction.

  9. 5 out of 5


    Got this as my older laptop (Lenovo Z570) Intel Wireless-N 1000 card was not supported under Windows 10. The laptop does not allow replacing the internal wireless card, so I went with a micro USB option. The reviews on this seemed good and I decided to give it a try. Edimax is not the best known brand so I did have some reservations. However, I can say that it was literally plug and play in Windows 10. Didn’t even need the included drivers on CD. System saw it and installed drivers automatically, showing multiple wireless networks available in my area. From about 30 ft away, connecting to my ASUS AC router through 3 or 4 walls in my old house, easily got 4 of 5 bars and solid 48Mpbs connection (about as fast as my overall internet connection). The connection has been solid for a week; no drops or restarts seen.

    The unit is very small, maybe a touch longer than my wireless mouse dongle (1 mm maybe) and easily disappears. If you are in the same circumstances that I was, and are looking for a nano dongle, this is a great option and a very competitive price. I would recommend.

  10. 5 out of 5


    My mother’s laptop’s wifi router broke and she had it in her mind that she was going to have to get another computer. I bought her this little thing instead. She’s very, very happy with it. $10 saved the cost of having to buy a new laptop PC.

    The computer hasn’t been updated to Windows 10 yet, but it works perfectly with Windows 8. The speed is great for browsing and while I haven’t pushed it on video that much, I have watched a few youtube videos to test how well it could handle the load and it was perfectly fine.

    Installation wasn’t too bad. I did have a slight hiccup from not quite understanding a direction, but nothing so bad that I’d knock a star off it. Anyone should be able to install this, at least so long as you have an optical drive. (And even if you didn’t, I’m sure the company let’s you DL the driver software on their site.)

    I’m sure there are more powerful USB wifi routers people could get if they’re going to use, but while I considered some of them, I was really won over by the tiny design of this. You can put it in a bag or carry it around and there’s no big antenna getting in the way, and most people would look at the PC and not even notice there’s an adapter in the computer at all.

    So… for anyone who’s wifi router is on the outs but is otherwise happy with their computer, give this a try. It may just give your PC a little extra life — and save you some big bucks in the process.

  11. 3 out of 5


    Did what I needed it for – a low profile wireless-ac adapter for my netbook. I had to go to edimax’ website to find some beta driver for it to make it work under windows 10 though. Fortunately, my built-in wireless-g adapter still works to be able to do that. Bummer, though, that my little netbook lacks the horsepower to really take advantage of our gigabit internet connection, but it’s still faster than my wireless-g.

  12. 5 out of 5


    Pretty good range for its size.
    Small size allows it to fit anywhere.
    Works with Raspberry Pi

    Direction is a little more important.

    Despite its smaller size, the range of this product is pretty good. I have had moderate signal strength to a device from 50+ feet through 4 walls. Its low profile design help keep the look of the host device, without any odd antennas sticking out. Overall, I am impressed with this device and would be willing to purchase it for another raspberry pie build.

  13. 5 out of 5


    Dropped this tiny guy into a Raspberry Pi B+ to serve as its internet connection. Not much needed on the configuration end of things: just follow these instructions to get your Pi up and running: […]

    The adapter itself performs like a champ, pulling down a great signal, and keeping a solid connection weeks on end. I would highly recommend this affordable and well made Wifi dongle if you have good signal coverage in the area you will be using it.

  14. 4 out of 5


    I purchased this little gem so that I could connect to a WiFi printer while using my network’s built-in network card for accessing my WiFi. Two networking devices, two connections. it works great.

    The only thing that I don’t like is that it wasn’t plug-and-play – at least with my computer. I had to actually use the installation disc included to get it working. Not such a big deal, but I haven’t used an installation disc in forever.

  15. 5 out of 5


    Works exactly as described! Arrived in 2 days thanks to Prime, and quickly bought my 2010 Compaq desktop that I transferred from my office to my home, back to life. For some reason, like many others I forgot that most desktops aren’t equipped with WI-FI (card), so for at least a few hours we couldn’t figure out why we couldn’t connect to our home internet. I also love the extra compact size and the flashing blue indicator light. Highly recommend.

  16. 5 out of 5


    I am very impressed by this little thing. I got this for a used computer that I bought for my kids. I plugged it in, and within seconds, the computer prompted me to choose a wireless network. The PC is running Linux Ubuntu 15.10. I can’t comment much on the range, since we live in a tiny apartment, but we do have thick cinder block walls, and it seems to play my sons’ browser-based games without a hitch.

  17. 5 out of 5


    This is probably the smallest WIFI adapter out there. It is plug and play. It was very easy to install on Windows 10. I didn’t even need to use the CD that came with it because my Windows 10 immediately recognized the adapter. I was able to go online in seconds. Great quality for the price.

  18. 5 out of 5


    Been using this about two weeks with a raspberry pi. Plugged in directly and it worked right away. I have had no problems with connections or installations yet.
    Will update review if it dies like some of the reviewers complained of.

  19. 1 out of 5


    These adapters have a very high rates of failure. So far, I’ve used four of them. Out of four, one went bad within one day and one went bad after two weeks of use. That’s a 50% failure rate. I’ve used them in a Raspberry Pi based router.

    They get quite warm and I suspect they overheat because there is no way for the electronics to dissipate heat in the tiny enclosure. You might be able to get away with using these if all you need is occasional traffic, but if you want to do things like streaming or use them in a router, they are terribly inadequate.

    You’re wondering why yours only works sometimes? Doesn’t seem to have any range and then doesn’t even work over a short distance? It’s because it’s broken. Replace it with a new one and you’ll see – as long as it lasts.

    The amount of time I’ve had to spend troubleshooting because of these is infuriating. Yes, they are very cheap. But even for people on minimum wage, having to spend a few hours of troubleshooting makes it worth buying something better. Perhaps the only exception to that is kids for whom time is no issue at all.

  20. 2 out of 5


    As far as connecting your laptop to wifi it works, but the speed is horrible, I purchased this for my laptop which has wifi-g built in receiver, since I had a wifi-n router, I thought this would improve the speed. It didn’t. You see, I found out that the built in wifi recievers usually come with big antennas embedded within the laptop, and that affects the speed significantly. So this one actually got a slower speed than my built in receiver. So, unless you have a laptop from the previous century with no built-in wifi, this product would be of no use to you.

  21. 1 out of 5


    I got 16.18 mbps download speed when I get over 100 mbps on my iphone’s wifi connection. I used this for my acer aspire and it does not give up to 150 mbps as advertised. I have 150 mbps for my internet and this is a waste of money if I can’t get that.

  22. 2 out of 5


    I wanted to like this, however it simply does not hold a stable connection to my home router or to the wifi at my school. I cannot recommend it. I originally purchased it because the wifi built into my Sony Vaio laptop computer did not work well. I thought this wold be a quick fix, however this dongle actually performs worse than the original built in wifi. It constantly stalls and drops the connection even when the router is only mere feet away. Being that two different wifi adapters failed me on the same computer I ended up blaming the computer as shelving it. Then an opportunity came along to try a different brand of wifi dongle and, like magic, my wifi on the Sony computer worked flawlessly! No dropped connections and no stalling. I would highly recommend going with a different brand. It could be that I just got a lemon, but I have noticed other poor reviews on this item so I doubt it. Save your time and money and look elseware.

  23. 5 out of 5


    This adapter is the definition of plug and play. I stuck in my Windows 10 Desktop AND my Raspberry Pi and both worked without extra configuration. 150 Mbps isn’t too fast but it is decent enough to stream Youtube Videos in 1080p. This is also the smallest WIFI adapter that I have ever used. The fact that I don’t need to download any drivers or clients makes this one of the best WIFI adapters for a hassle free experience!

  24. 1 out of 5


    Junk! This wifi device installed quickly and does work, at the slowest possible speed. I’d say this adapter is limited to about 10mbps. That might be fine if you live in a rural area with slow internet. My home internet is 150mbps, which means this adapter reduces my speed to about 7% of my total internet speed. I tested this while sitting in the same room as my router.
    Web pages load SO SLOWLY with this device; it’s totally unacceptable. I wouldn’t give this device to my grandmother.
    This does work, but there’s no way I can justify continuing to use it. I regret not paying slightly more.

    It’s listed as an “N” adapter, but it’s speeds don’t get anywhere near that. Tested on multiple computers, all running Windows 7 Pro. Those same computers are much faster with another wifi adapter, or a wired connection.

  25. 1 out of 5


    Absolute piece of horse dung.

    This adapter arrived broken. I was unable to get it to load a single webpage (after driver install and restarting), while attempting to accomplish this on two different laptops. Furthermore, it heated up my USB ports to an uncomfortably hot level. Trying to return item since it is Amazon Prime but not letting me, stating it’s ‘ineligible’, with no further explanations..? Lastly, the product’s information states that there is a two year warranty; but I can’t even get a return RMA on the DAY it arrived dead…

  26. 4 out of 5


    As with all my reviews:
    1= Worst product ever, does not even come close to description
    2= Bad, breaks easy, something along those lines
    3= Meets expectations with a minor flaw of some type.
    4= Meets expectations, no issues. As Described.
    5= Exceeds expectations in some way or another.

    I am using this little guy on an old desktop that I am using as a multimedia center. It picks up a strong signal from about 70 feet away and though about 2 walls. Does what I expect and allows me to stream movies in HD fine.

  27. 1 out of 5


    I purchased this item because it was advertised as working well with the raspberry pi, and it broke twice. The first time I had to pay for shipping to get a replacement and the replacement has broken as well. I do not recommend this item. If you do not purchase this item from the Edimax company itself you are NOT eligible for a refund. DO NOT BUY.

  28. 5 out of 5


    Plug and play! Wonderful for my Raspberry Pi 2!!! I literally plugged it in and it instantly detected my Wifi. Installed 4 of these over the past week and all have worked perfectly. For the price and quality, this is a must buy, unless you run 5ghz, then you need a different Wifi. Yet if you are running 5ghz, you already know this. Anyways, great product, fast shipping, and great pricing, what else do you need??!

  29. 5 out of 5


    Perfect for any computer. Small form factor allows you to plug it in and forget about it.

    Range isnt perfect. If your in the same room as your wifi this will give you close to (wired) full speed. I am about 150 feet from my router on the other side of the wall and i get 50% speed (65mbps) at the connection. A USB extension cable to move the Wifi module higher than the desk, pc, or location of the computer will give you better reception.

    I did give this 5 stars as its an excellent value, antenna is small and thats the reason why speeds varry between rooms. If you are worried about speed and range, hard wired is the ideal way to go, if you just download music, surf the web and dont play online games this will be perfectly fine for you.

  30. 4 out of 5


    This was so very easy to get working on a Raspberry Pi. Everything was included in Raspbian just followed a WiFi guide on the Pi website.

    The performance isn’t as good as I hoped. I’m close to my wireless access point connected to aa 2A power soirce but it seems that I can’t get more than about 3MB/sec. With the wired connection I’m getting about 6MB/sec.

    I didn’t need this, but I was curious. At least I know that it’s not faster than a wired connection in my configuration. I might play around later to see if it can get faster.

    Bottom line: It’s easy to install, works really well if you need a wireless connection, but it’s not as fast as the wired connection.

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