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The best USB Wi-Fi adapter in 2021

Included in this guide:

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

The best USB Wi-Fi adapter is about security. The security of knowing you have a networking backup should the worst happen and your gaming PC's ethernet port or built-in Wi-Fi connection catastrophically falls over. So much of our life is spent online that when it's suddenly absent it can feel like a limb's missing, so it's worth having a backup internet pipe available should the worst happen.

Obviously, in an ideal world, a wired connection will provide better stability and throughput—especially in combination with the best gaming router—but having cables strewn across the floor isn't always an option. So, we've brought together a list of our favorite USB Wi-Fi adapters, to help you decide which one best suits your situation. 

If you're looking to consolidate cable clutter in other areas, the best wireless gaming keyboards or the best wireless headsets should be your next stop. Lets build a wireless future together.

Best USB Wi-Fi adapters

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Trendnet TEW-809UB WiFi adapter on a blank background

(Image credit: Trendnet)
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Trendnet TEW-809UB on a blank background

(Image credit: Trendnet)
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Trendnet TEW-809UB on a blank background

(Image credit: Trendnet)

1. Trendnet TEW-809UB

The best full size Wi-Fi adapter

Specifications
Standard: AC1900 IEEE 802.11 a/b/g/n/ac
Frequencies: 2.4GHz + 5GHz
Dimensions: 3.4x 2.9 x 0.8 in (85 x 75 x 20 mm)
Weight: 1.7 oz (48 g)
Reasons to buy
+Fast AC1900 speeds+Great range
Reasons to avoid
-No bundled software-Not the most portable

There are nano adapters at the tiny end of the scale, and at the opposite end is the Trendnet TEW-809UB. This networking adapter 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. Instead, 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 stable and fast. It puts its antennas to good use, beating every other adapter tested on our wireless fringe location testing—on both the 2.4 GHz and 5 GHz bands. This is a great solution if you're using Wi-Fi in a challenging situation with a weak signal.

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NETGEAR Nighthawk AC1900 WiFi USB Adapter on a blank background

(Image credit: Netgear)
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NETGEAR Nighthawk AC1900 WiFi USB Adapter packaging

(Image credit: Netgear)
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NETGEAR Nighthawk AC1900 WiFi USB Adapter on a blank background

(Image credit: Netgear)

2. NETGEAR Nighthawk AC1900 WiFi USB Adapter

Best Wi-Fi adapter for gaming laptops

Specifications
Standard: AC1900 IEEE 802.11 a/b/g/n/ac
Frequencies: 2.4 GHz + 5 GHz
Dimensions: 4.7 x 1.8 x 0.9 in (120 x 45 x 22 mm)
Weight: 2.3 oz (66 g)
Reasons to buy
+Excellent dual-band connectivity+Included Desktop cradle
Reasons to avoid
-Not the fastest option-A somewhat bulky design

When it comes to the best gaming routers, there are few names as ubiquitous as the Netgear Nighthawk. Netgear has been producing excellent gaming routers for some time, and the Nighthawk AC1900 brings that same performance to a portable USB adapter. 

This won't necessarily get you a blazing fast connection in your local coffee shop, but at home, you can 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 Nighthawk AC1900 is a 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 its size means that it may not always find a vacant port with the necessary clearance.

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ASUS USB-AC68 on a blank background

(Image credit: Asus)
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ASUS USB-AC68 on a blank background

(Image credit: Asus)
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ASUS USB-AC68 on a blank background

(Image credit: Asus)
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ASUS USB-AC68 on a blank background

(Image credit: Asus)

3. ASUS USB-AC68

Best portable USB Wi-Fi adapter

Specifications
Standard: AC1900 IEEE 802.11 a/b/g/n/ac
Frequencies: 2.4 GHz + 5 GHz
Dimensions: 4.5 x 1.2 x 0.7 in (115 x 30 x 17 mm)
Weight: 1.6 oz (44 g)
Reasons to buy
+Plugs directly into USB or included cradle+Two deployable antennas
Reasons to avoid
-Unimpressive 2.4 GHz performance-5 GHz not the fastest either

The Asus USB-AC68 adapter features a novel folding design that incorporates dual deployable antennas. It supports USB 3.0, as well as 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 a distance. While the 5 GHz tests are much more reliable, 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. The low street price of $75 also works in its favor. 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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Edimax EW-7833UAC on a blank background

(Image credit: Edimax)
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Edimax EW-7833UAC on a blank background

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Edimax EW-7833UAC on a blank background showing antennae motion

(Image credit: Edimax)

4. Edimax EW-7833UAC

Best mid range USB Wi-Fi adapater

Specifications
Standard: AC1750 IEEE 802.11 a/b/g/n/ac
Frequencies: 2.4GHz + 5GHz
Dimensions: 3.4 x 1.1 x 0.7 in (87 x 27 x 18 mm)
Weight: 0.8 oz (23 g)
Reasons to buy
+Dominated throughput tests+Deployable antenna
Reasons to avoid
-Not the best at range-Runs warm after prolonged use

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 one takes it a notch up with AC1750 speeds (N450, AC1300). Installation was straightforward, 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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Linksys WUSB6300 on a blank background

(Image credit: Linksys)
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Linksys WUSB6300 on a blank background

(Image credit: Linksys)
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Linksys WUSB6300 on a blank background

(Image credit: Linksys)

5. Linksys WUSB6300

Best nano USB Wi-Fi adapter

Specifications
Standard: AC1200 802.11ac
Frequencies: 2.4GHz + 5GHz
Dimensions: 1.6 x 0.7 x 0.5 in (41 x 18 x 12 mm)
Weight: 0.6 oz (17 g)
Reasons to buy
+Very compact+Supports MU-MIMO
Reasons to avoid
-Unexciting 2.4 GHz throughput -Can block other USB ports

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

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

Best USB Wi-Fi adapters FAQ

Do USB Wi-Fi adapters work well?

The best USB Wi-Fi adapters can deliver an experience that's almost indistinguishable from a built-in wireless module on your PC or laptop. But those are generally the larger versions, with many antennae and a high price tag. 

The smaller, nano adapters won't perform as well, and will likely need direct line of sight to your router to get the best speeds. But they are more practical if you need to be able to move around with your adapter.

Are USB Wi-Fi adapters good for gaming?

It's all about which adapter you choose, and how much you're willing to spend. The best USB Wi-Fi adapters will deliver online gaming performance that's practically indistinguishable from the speeds you can get from a built-in adapter.

But cheaper, smaller versions might well add some extra latency into the process which will make them less suitable for competitive online gaming, particularly FPS games.

How do you test Wi-Fi adapters?

Throughput testing was done using NetPerf software. A desktop with a Gigabit Ethernet port 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" 8ft (2.4m) distance with a direct line of sight, and also at a "far" 30ft (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. 

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