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The best USB Wi-Fi adapter 2019

The best USB Wi-Fi adapter 2019
(Image credit: ASUS, Trendnet)

It's maddening to think that in the modern age we live in, that Wi-Fi isn't built into every motherboard as a gold standard. Thankfully, the best USB Wi-Fi adapters fill that gap perfectly, offering you a seamless wireless connection or simply improving your connectivity. It's important to note that even the best Wi-Fi adapter won't be as reliable as a wired connection to the best gaming router. But for those of us yearning to live in an increasingly wireless world, the choice is obvious.

It's virtually impossible these days to set up your gaming PC, let alone game reliably without a solid internet connection. While the price tag might make you dry heave just a little, especially considering how much you just spent on your high-end gaming PC. Spending money on something as basic as your computer's internet connection will only serve to pay huge dividends and not to mention, save you a great deal of frustration with almost everything you do from streaming to downloading new titles.

While thinking about having a stable Wi-Fi connection may be the last thing on your mind, skipping on this kind of investment may be something you end up regretting down the line. Do yourself a favor and upgrade your connection and check our top picks to keep your connection swift and steady.

Best USB Wi-Fi adapters

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(Image credit: Trendnet)
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1. Trendnet TEW-809UB

Best full size Wi-Fi adapter

Standard: AC1900 IEEE 802.11 a/b/g/n/ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 85 x 75 x 20 mm (3.35 x 2.95 x 0.79 in.) | Weight: 48g (1.7 oz)

Fast AC1900 speeds
Great range
Doesn't support MU-MIMO
Too bulky for travel 

There are nano adapters at the tiny end of the scale, and at the opposite end is the Trendnet TEW-809UB. This networking device tosses portability out the window, for faster AC1900 (N600, AC1300) speeds and serious antennas—four, to be exact, all positionable with a strength of 5 dBi each. There is only a driver provided, but no software. Rather, Windows is in control of the networking duties. The adapter does not support MU-MIMO, but does support Beamforming.

In use, the Trendnet TEW-809UB is rock stable and fast. It puts its antennas to good use, beating every other adapter tested on our new wireless fringe location testing—on both the 2.4 GHz and 5 GHz bands. For using Wi-Fi in a challenging situation with a poor signal, this is the adapter to go with.

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(Image credit: Netgear)
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(Image credit: Netgear)

2. NETGEAR Nighthawk AC1900 WiFi USB Adapter

Best Wi-Fi adapter for gaming laptops

Standard: AC1900 IEEE 802.11 a/b/g/n/ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 4.7 x 1.8 x 0.9 in | Weight: 66.5g (2.3 oz)

Excellent dual-band connectivity
Included Desktop cradle
Bulky compared to USB adapters
Expensive

When it comes to the best routers for gaming, there are few names as ubiquitous as Netgear Nighthawk. Netgear has been producing excellent gaming routers for some time, but the AC1900 Wi-Fi brings that same performance to a portable USB adapter.  While this won't necessarily get you a blazing fast connection in your local coffee shop, you can still use the included magnetic desktop cradle to ensure your rig is getting the best possible connection from your router a couple of rooms away.

The AC1900 is remarkably powerful and portable adapter but is somewhat bulky when compared to its peers, there were occasions where I was mildly concerned about snapping it off in one of my laptop's USB ports and it's size means that it may not always find a vacant port with the necessary clearance.     

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(Image credit: Asus)
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3. ASUS USB-AC68

Best portable USB Wi-Fi adapter

Standard: AC1900 IEEE 802.11 a/b/g/n/ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 4.52 x 1.18 x 0.68 in | Weight: 44g (1.6 oz)

Plugs directly into USB or included cradle
Two deployable antennas
Mediocre 2.4GHz performance

The Asus USB-AC68 adapter features a novel folding design that incorporates dual deployable antennas. It includes a USB 3.0 connection, the AC1900 standard, Asus AiRadar Beamforming, and MU-MIMO via a 3x4 antenna design. The results are a bit of a mixed bag as this Asus adapter lags in the 2.4 GHz tests at both distances. While the 5 GHz tests are much stronger, it still wasn't the fastest at either the close or far distance tested. 

While the Trendnet TEW-809UB is our favorite Wi-Fi adapter for its performance and range, it isn't exactly the most compact or portable solution. For those who are hoping to use their adapter for gaming on the road, the Asus USB-AC68 is a much better choice with its street price of $75. The adapter includes a cradle for use at home but can be plugged directly into a USB port for easy travel.

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(Image credit: Edimax)
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4. Edimax EW-7833UAC

Best mid range USB Wi-Fi adapater

Standard: AC1750 IEEE 802.11 a/b/g/n/ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 87.1 x 27 x 18 mm (3.4 x 1.1 x .7 in) | Weight: 23g (.81 oz)

Dominated throughput tests
Deployable antenna
Poor performance at long distances

The Edimax EW-7833UAC is the update to our previous budget adapter pick, the EW-7822UAC. While many mainstream adapters suffice with AC1200 specs, this Edimax EW-7833UAC takes it a notch up with AC1750 speeds (N450, AC1300). Installation was simple, with Windows 10 managing the settings. While it is similar in size to other mainstream adapters, it cleverly features a small deployable piece that contains three antennas to increase range and throughput, along with support for both MU-MIMO and Beamforming technology.

The EW-7833UAC smoked the competition, with class leading throughput on four of the six tests, which included both the 2.4 GHz and 5 GHz frequencies. We came away particularly impressed on the close 5 GHz test of 298.9 Mbps, much faster than some other respectable adapters could muster. The only real weakness was on the far tests where this adapter gave up a little ground to the competition. Perhaps the best part is that the street price of this adapter is $34 making these kinds of speeds affordable for all.

Best Wi-Fi range extenders | Best gaming routers | Best gaming headset | Best controller for PC gaming | Best gaming monitor | Best mechanical keyboard  

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(Image credit: Linksys)
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5. Linksys WUSB6300

Best nano USB Wi-Fi adapter

Standard: AC1200 802.11ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 40.64 X 18.03 X 11.94 mm (1.6 x .71 x .47 in) | Weight: 5.9g (.21 oz)

Very compact
Supports MU-MIMO
Slower 2.4GHz speeds

The Linksys WUSB6300 gets termed "micro" by the Linksys folks, and is quite small. It offers AC1200 speeds, which translates to about 860Mbps via 5GHz, and 300Mbps on 2.4GHz. Even with the diminutive size, it supports the latest technology for wireless adapters, including MU-MIMO and Beamforming.

This tiny device balances its small size against more than decent range and throughput. While the spec does limit the 2.4GHz scores, the speeds on 5GHz, even on the longer distance tests, bring home the win for throughput on three of the six tests for this increasingly competitive category of adapter. The longer distance tests for this adapter are even more impressive when you compare it against its class competition that fall short in the wireless fringe testing. The list price of $40 makes the Linksys WUSB6300 a great choice for an adapter to toss in a bag with your notebook or to carry as a backup.

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(Image credit: Trendnet)
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6. Trendnet TEW-805UB

Best budget USB Wi-Fi adapter

Standard: AC1200 IEEE 802.11 a/b/g/n/ac | Frequencies: 2.4GHz + 5GHz | Dimensions: 80 x 27 x 12 mm (3.1 x 1 x 0.5 in.) | Weight: 20 g (0.7 oz)

Bargain price
Decent range
Speed isn't great

While many of us want to drive a Porsche or Ferrari, more of us end up driving Honda Civics or Toyota Corollas. For those that want the bargain basement of a USB wireless adapter, we recommend the Trendnet TEW-805UB, the little brother to our best full size adapter pick, the Trendnet TEW-809UB.

This Trendnet adapter is sized just right—compact, while not so easy to lose. The textured outer surface also effectively keeps it from getting all smudged. While it did not win any crowns on throughput, it still had solid speeds across the board, except for the 2.4 GHz fringe test, but recall that we originally started using this location to test extenders as in a Wi-Fi deadspot, this Trendnet adapter still managed 61.5 Mbps of throughput, and all of its other scores were quite a bit higher.

How we test USB Wi-Fi adapters

Testing was done for throughput using NetPerf software. A desktop with a Gigabit Ethernet port (10/100/1000) is used to send the data via a wired connection to the router. Three test runs were done on each wireless adapter at each of the 2.4 GHz and 5 GHz frequencies, at three distances: close, far and fringe, with the highest throughput of each parameter reported. The router used is the ASUS RT-AX88U, our top gaming router. The throughput is tested at a "close" 8' (2.4m) distance with direct line of sight, and also at a "far" 30' (9.1m) distance with an obstructing floor and wall in the way, as well as some metal ductwork intervening. For this revision, we added tests in a Wi-Fi "fringe" location, that we started using for our best wireless extender, guide except we did not plug in an extender to make the wireless connection more challenging for the wireless adapter and to test their antennas.