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Edimax AC1200 Wi-Fi USB Adapter with MU-MIMO $15 @ Amazon

$14.99
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Amazon [amazon.com] has the Edimax EW-7822ULC AC1200 Wi-Fi USB Adapter with MU-MIMO for $14.99 with free Prime shipping.

This could be a good way to upgrade the Wi-Fi on your devices to take advantage of MU-MIMO support in your fancy new router. In order to see any benefit from MU-MIMO, you need at least two clients that support it. This would be a good price for the specs even if it didn't support MU-MIMO.

Edimax is the manufacturer of the identical ASUS USB-AC53 Nano which costs more than twice as much.

More info:
Edimax Product Page [edimax.com]
WikiDevi entry for hardware info [wikidevi.com]
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Our community has rated this post as helpful. If you agree, why not rep izx?
#2
Note that this is still USB 2.0, meaning that you will be limited to about 30 Mbytes/sec max throughput even if you stick it right next to a 1200AC or higher router. AC really needs USB 3.0.

Also, no built-in Linux support. Uses RTL8812AU, you can probably compile your own driver from the Realtek provided source with some effort.
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#3
Quote from izx
:
Note that this is still USB 2.0, meaning that you will be limited to about 30 Mbytes/sec max throughput even if you stick it right next to a 1200AC or higher router. AC really needs USB 3.0.

Also, no built-in Linux support. Uses RTL8812AU, you can probably compile your own driver from the Realtek provided source with some effort.
USB 2.0 is rated for 480 Mbit/s (or, a max of 60 MB/s through the interface), but actual link speeds (throughput) can and will vary due to other factors:

This week while upgrading wifi adapters, a new ASUS USB 3.0 AC adapter (internal antenna) reported a lower throughout speed than what a no-name USB 2.0 N adapter (external antenna) reported. Surprised me.
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#4
in for 1, was $10.83 after dash button credit, I like to have these on hand when messing with older builds
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09-08-2017 at 02:58 PM
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#6
I don't understand, I thought mu-mimo was something found in routers, not adapters? How does this work?
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#7
Building a pc. Have powerline adapters already and just got $10 promo credit on Amazon. Good deal?
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#8
Quote from mamamia88
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Building a pc. Have powerline adapters already and just got $10 promo credit on Amazon. Good deal?
I had the 2nd generation 500mbps powerline and this wifi adapter beat them easily.
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Last edited by LosL2556 September 8, 2017 at 03:30 PM. Reason: clarification

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#9
I bought this exact device about a month ago, and it has been very problematic for me. I have an Asus RT-N66U router on the latest firmware. I originally had a Cisco USB 802.11n adapter, but it could only work on 2.4 GHz. I bought this Edimax USB adapter to be able to get on 5 GHz. However, it is very flaky. Constant disconnects and very high ping times in the 100ms+ with lots of lost packets. I swapped it out for an internal Intel 8250 mini PCI card, and the difference is night and day. 1 - 2 ms ping times, and super stable connection with virtually no packet loss.
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#10
Quote from kandykat
:
I don't understand, I thought mu-mimo was something found in routers, not adapters? How does this work?
MU-MIMO must be supported on both sides of the link. Here's an explanation of how MU-MIMO is intended to help wireless performance. Why You'll Want MU-MIMO [smallnetbuilder.com] - SmallNetBuilder
Quote from mamamia88
:
Building a pc. Have powerline adapters already and just got $10 promo credit on Amazon. Good deal?
I'd recommend putting a PCIe Wi-Fi adapter in a desktop computer instead of using USB. Try to match the speed of your router to the speed of the adapter.

This would be my current pick: Fenvi Dual Band Wireless-AC Desktop PCI-e Card 8265 802.11a/b/g/n/ac, Dual Band, 80MHz, 2x2, MU-MIMO... [amazon.com] for $32. It has an Intel Dual Band Wireless-AC 8265 [intel.com] laptop M.2 NGPP card on a PCIe x1 desktop adapter.
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Last edited by dhc014 September 8, 2017 at 03:46 PM.
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#11
Quote from kandykat
:
I don't understand, I thought mu-mimo was something found in routers, not adapters? How does this work?
Iirc in order to take advantage of a router with mu-mimo support you'll need mu-mimo compatibility on the device's end as well. Someone please correct me if im wrong
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#12
Quote from mithnb
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I got it recently and speedtest.net consistently gave me 90mbps download - so your assumption is wrong.
Link speed and your internet speed test are 2 different things
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#13
Quote from kandykat
:
I don't understand, I thought mu-mimo was something found in routers, not adapters? How does this work?
You need a MU-MIMO capable wireless adapter to take advantage of a MU-MIMO wireless router or access point
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#14
Quote from mithnb
:
I got it recently and speedtest.net consistently gave me 90mbps download - so your assumption is wrong.
You guys are comparing different units. mpbs is "bits", whereas "bytes" is 8 bits. Your 90mbps is about 11 Mbytes/sec.
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#15
I bought the N150+BT 3 months back works great for BT and Wifi but that was after trying to find the right drivers from their website.
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