Edimax EW-7822UAC Wireless AC Adaptor review

Is it too soon to move to 802.11ac?

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  • USB 3.0 speeds
  • Fast
  • Good range
  • Decent price


  • Ugly looking
  • Bulky
  • For early adopters only

The latest generation of wireless networks - 802.11ac - offers a lot of potential, with transfer speeds of up to 867Mbps with a single 5GHz antennae and wider coverage.

While a stream of wireless AC routers have been brought out, most devices still have built-in 802.11n adaptors. USB adaptors that enable you to connect to the wireless AC networks have come out, but they've been rather hamstrung by the fact that they use USB 2.0, which doesn't have the bandwidth to make full use of the increased wireless speeds.

The Edimax Wireless AC Adapter EW-7822UAC, however, is the first USB 3.0 AC1200 adaptor.

Edimax has a reputation for producing ugly, yet functional, network devices for businesses - a reputation that it is trying to shake off. With the EW-7822UAC that reputation isn't going to be challenged any time soon. If you've got a nice sleek laptop or tablet, having the EW-7822UAC poking out of the side could spoil the aesthetics somewhat.

But that's not what this device is for - it's about getting the fastest speeds out of the newest technology.

So how well did it perform? In our tests we sent a 100MB file between a PC with the EW-7822UAC to a laptop connected via Ethernet to a Belkin AC1200 DB router. Uploading and writing the file to the remote PC saw speeds of 83.43Mbps, while downloading the file from the other PC had speeds of 106.06Mbps.

For the sake of comparison the Belkin AC Wi-Fi Dual-Band USB Adaptor - which is only USB 2.0 compatible - reached download and upload speeds of 80.2Mbps and 93.81Mbps respectively.


Wireless AC is still in its infancy, so we hope to see an improvement in speeds - especially with USB 3.0 devices - in the future. Unless you need the newest tech going, however, we recommend you hold tight for now.

Tech Specs

Product TypeWi-Fi Adapter
Wireless LAN StandardIEEE 802.11ac
ISM BandYes
UNII BandYes
Wireless Transmission Speed867 Mbps
Brand NameEdimax
Form FactorExternal
Device SupportedDesktop Computer
Host InterfaceUSB
ISM Maximum Frequency2.48 GHz
UNII Maximum Frequency5.83 GHz
Height18 mm
Width27 mm
Depth87.1 mm
ManufacturerEdimax Technology
Product ModelEW-7822UAC
Product NameAC1200 Wireless Dual-Band USB Adapter
Manufacturer Part NumberEW-7822UAC
Manufacturer Website Addresshttp://www.edimax.com
Marketing Information

802.11ac Truly Realized with USB 3.0

USB 3.0 is up to 10 times faster than USB 2.0 and specifies a maximum transmission speed of up to 5Gbps. Providing quicker data transmission times, and backwards compatibility with USB 2.0 (which specifies a maximum speed of 480Mbps), USB 3.0 is the new standard in connectivity - enabling devices to achieve the superfast speeds which 802.11ac can provide.

World's Fastest USB Wi-Fi Adapter The Edimax EW-7822UAC is the next generation of Wi-Fi adapter, compatible with the draft 802.11ac standard and delivering speeds of up to 867Mbps at 5GHz - almost three times as fast as 802.11n. The EW-7822AC is the first adapter of its kind to offer 802.11ac speeds together with USB 3.0 connectivity. Upgrade PC's and notebooks to super high speed 802.11ac Wi-Fi and enjoy streaming video and data at speeds of up to 867Mbps.

Weight (Approximate)23 g