Getting a good USB wireless adapter to work with Linux used to be a problem but less so now with many available.
It is the chipset of a WiFi dongle that makes it compatible with Linux.
Popular chipsets include the Ralink 3070, Atheros AR9271, and Realtek 8187.
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Our Picks for Top Linux Compatible USB Wireless Adapters
Panda Wireless PAU09 N600 Dual Band (2.4GHz and 5GHz) Wireless N USB Adapter W/ Dual 5dBi Antennas – Windows XP/Vista/7/8/8.1/10, Mint, Ubuntu, openSUSE, Fedora, CentOS, Kali Linux and Raspbian
Panda makes many good wireless dongles including the PAU09.
It has two 5dBi antennas to get good range and comes with a USB extender if needed.
A big plus is its Kali Linux compatible and can go into Monitor Mode.
The PAU09 is a dual Band 2.4Ghz/5Ghz adapter and uses the Ralink RT5572 Chipset.
The one downside is no 802.11ac support, as it is a 802.11n unit.
Still its low cost, good range, and wide compatibility make it a good Linux USB adapter.
Read Full Review Here
Alfa Long-Range Dual-Band AC1200 Wireless USB 3.0 Wi-Fi Adapter w/2x 5dBi External Antennas – 2.4GHz 300Mbps/5GHz 867Mbps – 802.11ac & A, B, G, N
The Alfa AWUS036ACH is a Wireless-AC unit built for fast WiFi speeds and distance.
It comes with two large antennas that greatly improves a wireless signal.
It uses the RTL8812AU Chipset which Kali Linux released Drivers for.
This is good new for anyone wanting to use the newer 802.11ac WiFi protocols with Linux.
During our test it worked well with some impressive wireless speeds, 213Mbps Download, and 21Mbps Upload.
Alfa USB adapters are widely used in the Pen Testing community for their strong Chipsets, Linux compatibly, and screw on antennas that can be easily changed out for larger ones.
Read Full Review Here
Panda 300Mbps Wireless N USB Adapter – Windows Vista/7/8/8.1/10, Mint, Ubuntu, Fedora, openSUSE, CentOS, Lubuntu, Zorin, Kali Linux and Raspbian Wheezy
The Panda PAU05 is a small Wireless-N USB dongle that works with many operating systems.
It is a small dongle so the range is not the best and it only works in the 2.4 GHz range with 802.11n.
While not the fastest or longest range dongle its ability to work with many operating systems make it a good low cost choice for a Linux USB WiFI dongle.
TP-Link N150 Wireless High Gain USB Adapter (TL-WN722N)
UPDATE: The TL-WN722N chipset has changed with the new version 2.
The TP-LINK TL-WN722N is used widely in the Pen testing Kali Linux community.
It works with the aircrack-ng suite and is able to go into monitor mode for testing a wireless network security.
A 4dBi External Antenna gives it better range than many smaller dongles.
Chipset Atheros AR9271
TP-Link AC1200 Wireless Dual Band USB Adapter (Archer T4U)
The TP-LINK Archer T4U is a dual band 802.11ac USB adapter.
It uses the Realtek RTL8812AU chipset which many have had good results getting 802.11ac in the 5GHz range working with Linux.
Good 802.11ac USB dongles have been slow to come about and often require some setup for the drivers.
Here is a link to Realtek RTL8812AU chipset and Linux. https://github.com/abperiasamy/rtl8812AU_8821AU_linux
If you are looking for a easy setup than going with a known working wireless-N dongle would be better.
Chipset Realtek RTL8812AU
Dual Band 2.4 GHz and 5 GHz
When looking for an adapter to work work Linux be sure to look at the chipset the adapter uses and if the manufacture has changed it.
While not common some manufactures have been known to change a adapter chipset with new versions.
As always be sure to read the reviews on Amazon or elsewhere to be sure an adapter is a good fit for you and your setup.
A dongle with a large external antenna will have better range, the frequency can also matter.
Wireless dongles that transmit in the older 2.4 GHz frequency can transmit a signal better than the new 5 GHz band.
Radio waves can travel better on lower frequencies than higher frequencies giving the lower 2.4 GHz better range than 5 GHz.
5 GHz was opened up to WiFi in 2013 since the 2.4 GHz band has become overcrowded and full of signals.
In a crowded wireless environment signals begin to collide which than needs them to be resent slowing down a network.
The new 802.11ac protocol introduced in late 2013 is the fastest WiFi protocol available.
802.11ac can move data up-to a theoretical 5Gbps with the most common speed 1.3 gigabits per second (Gbps)
This gives it a huge advantage over Wireless-N the last WiFi protocol introduced, which can move data up-to 150/300 Mbps.
802.11ac only works in the 5 GHz band which means range would be sacrificed for faster speeds. Wireless-N is the only protocol that can work in both bands 2.4GHz and 5GHz.
802.11ac USB adapters with drivers written for the Linux have been slow to come about. There has been some good Linux compatibility with the Realtek RTL8812AU chipset and 802.11ac.
Being able to pen test with Linux is one of the benefits of using it.
Unfortunately not all USB adapter can pen test and go into monitor mode. The good news is there are some that can be used to pen test click here for our list of Linux Pen Testing USB Adapters.
The most popular are the Alfa AWUSO36NH and the TP-LINK TL-WN722N.