Alfa AWUS036NHA is an 802.11n wireless USB adapter from Alfa Network, Inc. with a top connection speed of 150 mbps. It has an Atheros AR9271 chipset

The Atheros chipset offers faster true throughput speeds to your ISP compared to other 150 mbps 802.11n products. This unit is ideal for video-streaming, online gaming, and large downloads. It is not as long a range as other options from Alfa including the AWUS036NH, the AWUS036H long range G adapter, and the AWUS036NHR 802.11n USB adapter. If you are not sure which is best for your needs, we recommend the AWUS036H for overall/802.11g range, the AWUS036NHR for overall 802.11n range, and this model- the AWUS036NHA for 802.11n speed. While this has the same max connection rate (150 mbps) as other 802.11n products, we have found the true throughput speed to be better.

Compatibility: This is compatible with Windows XP, Vista, and Windows 7 out of box (software included on CD). A Windows 8 beta driver is available as well as Windows 10.

We have also found this product compatible with Tamosoft TamoGraph Site Survey.

Linux use: This adapter is quickly becoming a favorite among Linux users. It is supported in Backtrack 5 and Kali out of box. Here are some links related to Linux use. Note that Linux is a user supported community, and we are not able to provide installation help or technical support for Linux. We cannot confirm compatibility for any specific distro.

http://wikidevi.com/wiki/ALFA_Network_AWUS036NHA
http://hackthistutorials.wordpress.com/reviews/alfa-awus036nha-review/

This is a single band (2.4 GHz) 802.11n adapter with maximum transfer speeds of 150 megabits per second (mbps). This is for one brand new (in retail box) AWUS036NHA wireless adapter with USB cable 5 dBi gain antenna, and installation CD. Some Alfa models include a bonus mount accessory, this one does not.

The AWUS036NHA works with any computer that has a USB port and one of the compatible operating systems listed below. It is perfect for netbooks, laptops, and desktops. It features an external RP-SMA antenna connector.

• Compatible with IEEE 802.11n, 802.11b/g/n wireless standards
• 2.4GHz frequency band
• USB 2.0 standard
• High speed transfer TX data rate up to 150 Mbps
• Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES
• features Atheros Align technology
• Works with Windows XP 32/64, Vista 32/64, Windows 7 32/64 (Windows 8 users, get a beta driver here)

FAQ- some common questions about Alfa AWUS036NHA 800mW USB adapter w/ 5 dBi antenna kit:

Since this has 800mW output, it will have the longest range and stronger signals than any other product with lesser power, right?
-Sometimes retailers have a tendency to promote a specific attribute of a product as if it is the only thing that matters. In fact, while higher output is a good thing, it is not the only thing that determines your range and signal strength.

How far away can I pick up signals with this?
-For this question there is no exact answer. Wireless range is an imperfect science. The range you get with any adapter will vary markedly depending on the strength and quality of the wireless access point being used, as well as obstacles and interference in the area. Keep in mind that interference can often be invisible.