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  • Edimax EW-7811Un 150M 11n Wi-Fi USB Adapter, Nano Size Lets You Plug it and Forget it, Ideal for Raspberry Pi, Supports Windows, Mac OS, Linux
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Edimax EW-7811Un 150M 11n Wi-Fi USB Adapter, Nano Size Lets You Plug it and Forget it, Ideal for Raspberry Pi, Supports Windows, Mac OS, Linux

by Edimax
| 346 answered questions

List Price: $14.99
Price: $9.99 & FREE Shipping on orders over $35. Details
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  • Currently smallest wireless adapter to be hidden well in USB port
  • Supports 150 Mbps 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
  • 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
  • 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
  • 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
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Frequently Bought Together

Edimax EW-7811Un 150M 11n Wi-Fi USB Adapter, Nano Size Lets You Plug it and Forget it, Ideal for Raspberry Pi, Supports Windows, Mac OS, Linux + RASPBERRY PI MODEL B 756-8308 Raspberry Pi B + SB Raspberry Pi Case (Clear)
Price for all three: $56.42

Buy the selected items together


Product Details

  • Product Dimensions: 7.3 x 3.5 x 1.1 inches ; 1 ounces
  • Shipping Weight: 1.4 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B003MTTJOY
  • Item model number: EW-7811Un
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (1,615 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: December 3, 2010

Product Description

EDIMAX EW-7811Un IEEE 802.11b/g/n Wireless Mini Nano Size USB Adapter, Up to 150Mbps Data Rates, with 16 languages EZmax setup wizard for easy installation.System Requirements: Windows 7/Vista/XP, Mac OS, Linux.

Customer Questions & Answers

Customer Reviews

Easy driver installation.
Manny
It has a good strong signal from the access point which is about 30 feet away in another room entirely.
aivanov
Constantly drops my connection every few seconds.
Noel Boyle

Most Helpful Customer Reviews

262 of 280 people found the following review helpful By Kevin Greene on March 11, 2013
Verified Purchase
I purchased this to add wireless connectivity to my Raspberry Pi running OpenELEC. My intention was to have the Pi sit in my second floor bedroom and stream media (movies and music mostly) from the HTPC running XBMC downstairs.

Upon plugging it in, I went to the settings screen in OpenELEC and entered in my wireless networking information. I rebooted for good measure and went to system information and found that it had no IP address. After verifying my wireless settings and rebooting once more, I still wasn't connected.

I tried a boatload of things, including installing RaspBian, RaspBMC, different versions of OpenELEC, various command line voodoo, disabling Wifi authentication, etc. None of this worked until I used a powered USB hub, and then it connected automagically. I was simultaneously relieved and frustrated when it worked. Relieved because it finally worked, frustrated because I spent so much time with it.

Now, several people have said that this doesn't need a powered hub for the Pi- which is actually why I bought it. My personal experience was that it did. I have seen things from other people about having to change their power supply to make Wifi adapters work on the pi - I didn't have another to use. Just keep that in mind that if you have trouble, try a powered USB hub before you tear your hair out.

With the Wifi now running properly, I took the Pi to my upstairs bedroom and set it up. I had previously verified that 1080p movies on the wired LAN ran without jitter or buffering. Playing with it on wireless, I found that I had to set my video streams to transcode to 1mbps 720p in order to stream without buffering. I was just happy that it was working, so I was OK with the quality drop.
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105 of 113 people found the following review helpful By Valentina on March 16, 2013
Verified Purchase
I was amazed at how tiny it is! About the width of my little finger pad and not longer than the first either! I used this for my mom's Sony internet TV , which was having trouble connecting to Netflix and the internet was running rather slow. As soon as I plugged it in, I went to internet settings and the thing picked up our WiFI from a different room immediately! Internet and Netflix 10 times faster than it was! Extremely happy with the delivery time too. I was originally told I would have to wait 'til April to get it; I received it 3/14! Awesome!
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119 of 135 people found the following review helpful By Anis Y. Jiwani on May 14, 2013
Verified Purchase
I purchased this to use it with a desktop in the upstairs bedroom directly avove the room in which the router is placed.. We recently switched our service provider to and the connection speed of 50 Mbps. My laptop connects without any problems when in upstairs bedroom with its built-in wifi and the speed I get is about 22 Mbps, when I take it downstairs in the same room as the router it jumps from 22 to 30Mbps, (45 Mbps via ethernet).

I tried the Edimax with my laptop which has no problem connecting when downstairs but in the bedroom it keeps loosing the signal intermittently. My laptop has Windows 7 installed.

I tried it with my second laptop which is an IBM Thinkpad with Ubuntu 12.04 installed. The speed I was getting downstairs was 12 Mbps which I thought was not bad but upstairs the speed dropped to barely 2 Mbps and sometimes no signal

I decided to return it and selected another adapter TP-Link TL-WN722N which worked like a charm on all my machines.

If you will be using the unit in the same room as the router be it Linux or Windows, this will work for you but if the router and the unit are at a distance, particularly on different floors you will have issues.

The main reason for poor performance could be attributed to the unit being very tiny and the built-in antenna is not powerful enough for it to work at a fair distance from router particularly if there are walls and floors in the way.
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59 of 66 people found the following review helpful By Mark Gutel on April 27, 2013
Verified Purchase
Perfect for Raspberry Pi. Didn't need to install drivers. Got a great connection from my router. Saw another review suggesting using a powered hub because of a problem dropping connection. I used the usb port on the pi and have no problems.
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33 of 36 people found the following review helpful By D. Handy on April 25, 2013
Verified Purchase
Purchased this USB wifi to dongle to use with my Raspberry PI running openelec & XBMC. Works great. Took a few minutes to get the settings right to get it to work but once the settings are right, it works like a charm. Here are the settings I used:
Goto System->OpenElec->Network
Network Adapter:
Network Technology: WLAN
Network Interface wlan0
IP Settings: (USE SETTINGS APPROPRIATE FOR YOUR NETWORK!) I haven't tested it with DHCP yet.
Static IP Address:192.168.1.80
Netmask Prefixlength:24
Network Gateway: 192.168.1.1
DNS Server 1: 192.168.1.1
WLAN Settings:
WLAN SSID: YOUR WIRELESS SSID
WLAN SECURITY: WPA/WPA2 (OR YOUR WIRELESS SECURITY)
WLAN Passphrase: Your passcode

A couple of observations to help insure success:
1) The Rasperry PI is very sensitive to under-powered power supplies, especially when using USB WiFi and drives. Some reviewers said they had to use a powered USB hub to get this dongle to work. I can only see two reasons that that would be the case: 1) They are using too small a power supply for the PI (a minimum of 1A is REQUIRED, I strongly suggest a 1.1A or greater power supply) or 2) They were running another power hungry device off the PI's USB port, like a USB drive of some sort. I have no problem running this dongle directly off the PI with no hub.
2) First time setup is much easier with a USB keyboard plugged in, but when using two USB devices on the PI its critical you have a strong power supply. By the way, iPad power supplies work nicely, as do the newer iPhone power supplies.

I'm very happy with this purchase and will be recommending it to a group of high school kids who I'm helping with their raspberry PI projects.
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