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NETGEAR N900 WiFi USB Adapter (WNDA4100)

by Netgear
2.5 out of 5 stars 2 customer reviews

Price: CDN$ 100.98 & FREE Shipping. Details
Only 1 left in stock (more on the way).
Ships from and sold by Gift-wrap available.
18 new from CDN$ 100.98
  • Maximum performance - 450 + 450 Mbps of Wireless-N speed for HD video streaming, multiple downloads, andonline gaming, all at the same time
  • Video streaming - Perfect for multiple HD video streams
  • Dual band - Twice the bandwidth for better connection and less interference
  • Easy setup - NETGEAR Genie CD with graphical installation guide
  • Secured connection - Push 'N' Connect offers a secured wireless Internet connection at the push of a button
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Product Details

  • Product Dimensions: 16.5 x 6.6 x 13.7 cm
  • Shipping Weight: 9 g
  • Item model number: WNDA4100-100NAS
  • ASIN: B006V72AE0
  • Date first available at March 10 2012
  • Average Customer Review: 2.5 out of 5 stars 2 customer reviews
  • Amazon Bestsellers Rank: #87,767 in Electronics (See Top 100 in Electronics)
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Product Description

NETGEAR N900 Wireless Dual Band USB Adapter connects your notebook or desktop computer to a wireless network with ultra high speeds and is perfect for demanding applications like streaming HD video, downloading and multi-player gaming. The WNDA4100 offers outstanding speed and performance demanded by online gamers as well as users who enjoy streaming HD video. Easy setup with the NETGEAR Genie CD gets you up and running fast, while Push 'N' Connect gives you a secured connection at the push of a button.

Customer Reviews

2.5 out of 5 stars
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Top Customer Reviews

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Can't find any internet connections not even mine when I'm approx. 4 meters away from the router.
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By DC on Sept. 28 2015
Verified Purchase
Product performs well in its own class.
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Most Helpful Customer Reviews on (beta) HASH(0x9f2a7708) out of 5 stars 199 reviews
25 of 28 people found the following review helpful
HASH(0x9f41ac78) out of 5 stars First Impressions March 25 2012
By mogulman - Published on
I just got the WNDA4100 yesterday and here are my first impressions. First, I am using the WNDR4500 Netgear router. I have been using it for about 3 months and have been very happy with the router. It has been very reliable since the last firmware update (v1.0.1.6). My router and PC are on opposite corners of the house, about 60ft and 8 walls. I know 5GHz does not do well penetrating walls but I wanted to see what it could do. My laptop with 802.11n and a single antenna at the same distance gets 72Mbps, the max it can get with 1 antenna. My desktop PC (Dell Inspiron 531/Windows 7) has a 802.11g PCI card adapter and gets 54Mbps. I wanted to upgrade since I have been working on some large video files that take 15mins or more to backup. I also wanted to try out 802.11a (5GHz). With 3 antennas in the adapter 2.4GHz max is 216Mbps and 5GHz max is 450Mbps. The WNDA4100 is a large USB adapter. It won't fit in my PC directly so I had to use the connector cable. Using the cable is a good idea since I could easily hit the adapter if it was plugged in upfront. I installed the software from CD and everything installed correctly. The router has an SSID for 2.4GHz and one for 5GHz. I disconnected from the 2.4GHz SSID and connected to the 5GHz SSID. I was not getting the expected performance. I was getting 54Mbps. I started inSSIDer to see what was going on. I rebooted and it did not fix it. I was finally able to connect at 162Mbps. I think inSSIDer was causing problems with the connection. I was only getting 3 bars (-80db) with 5GHz so that explained the 162Mbps and proved my concern about 5GHz penetrating walls. I then disconnected at 5GHz and connected at 2.4GHz. I got 4 bars (-60db) and connected at 216Mbps, the max. I then tried to ftp a 1G file to my NAS server. It took 3mins versus about 15mins. I am happy. I plan to try it on my laptop at a closer distance to see if 802.11a @ 450Mbps is possible.

Side rant. I am looking at getting a new laptop. A laptop usually lasts me 5 years so I want it to support 802.11a as well as 802.11n. I want it to have 3 antennas so I can get the max connection speed. I am willing to pay extra for an option to upgrade wireless networking. I just can't believe the new round of laptops coming out don't offer this. I found the Dell Ultrabook supports 802.11a with 2 antennas but other than this high-end model I have not found one.
11 of 13 people found the following review helpful
HASH(0x9f3e3ae0) out of 5 stars Top of the line Sept. 27 2013
By Amazon Customer - Published on
Verified Purchase
Not sure where these negative reviews are coming from. I might humbly suggest that some of these people check their router. A wireless adapter is ONLY as good as the router or other wifi it is trying to connect to. AND, your poor router has to broadcast through anything between it and its receiver. If you have a pile of books on top of it or something, expect crappy reception. The same, if your router is in the basement and your computer is three floors up with stone or sheet metal between the two. That being said, this is about as powerful as it gets with standard hardware when trying to connect to least on the reception end. It is, in essence, a very high quality antenna. If it's not working, the problem is probably, your network broadcast is of unreasonably crappy quality or you are asking too much of standard wireless (like trying to broadcast to the house next door on your laptop....we've all done it).

Bottom line....installation was plug and play. I plug it in, 30 seconds later, the operating system has installed drivers for it. If you want, you can use the included installation disk. But that isn't necessary. Or maybe it is....I still used XP (gasp....infidel).

Who needs this product. Two people. The guy who is trying to connect to his wireless just a little farther than is wise to and can't quite make it happen without a really good antenna. And the guy with a really good router who is pissed off because the wireless card in his laptop is just not good enough to make full use of his connection. The issue is there are cheaper adapters and most of them work just as good as this one because your router/wireless is crappy. Better router before better adapter. Most people with a computer more than a year or two old could probably benefit from both.

Also, check your cable modem if you have a home wireless network. There is simply no point if your internet access isn't good enough to support this. Most are, some are not.
11 of 14 people found the following review helpful
HASH(0x9f41e504) out of 5 stars WARNING...WARNING...WARNING Oct. 22 2013
By Art J Dudley - Published on
If you are using Windows 8.1, the 5GHZ band will NOT be operational using the Netgear driver (their latest driver as of the date of this review). The 2.4GHZ band will work fine.
3 of 3 people found the following review helpful
HASH(0x9f415abc) out of 5 stars Incompatible Windows 8.1 Nov. 18 2013
By A. Loika - Published on
Verified Purchase
I have the latest drivers installed. Everything worked with Windows 8.0. Fresh install of Windows 8.1 and it can no longer connect to 5ghz networks. This is a widely reported issue (google "wnda4100 windows 8.1 5ghz") with no useful responses from Netgear. Total fail and extremely disappointed for a product that had a premium price tag when I bought it.
7 of 9 people found the following review helpful
HASH(0x9f41ab64) out of 5 stars Good luck Aug. 12 2012
By sammy - Published on
I bought this to work with my N600 router which it does connect to half way, meaning it will connect to the 2.4 side and not to the 5 side.Then I can only get 300Mbps out of it not 600.
I tried to use the software update button to check for new software/firmware but it informs me that it cannot connect to netgears server and to check my internet connection, I am connected so who knows what going on there.
if you get this product I hope you have beter results then I or the other people who have commited here