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Home > Products > Long Range Wireless USB > Alfa AWUS036NHA Atheros AR9271 Wireless B/G/N USB Adapter
Alfa AWUS036NHA Atheros AR9271 Wireless B/G/N USB Adapter

Alfa AWUS036NHA Atheros AR9271 Wireless B/G/N USB Adapter

Item details
Weight: 500 grams
Stock: Stock available

Brand: Alfa Network
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ALFA Wireless USB 802.11b/g/n Long Range Adapter

  • Using Atheros Chipset
  • High speed transfer TX data rate up to 150 Mbps
  • Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES
  • Highest Ping & Stablility
  • Compact size for greater flexibility

Who need this?

  • If you always travels outstation or overseas and stay in Hotel with Wifi Hotspot, This is your best choice because from my own experience, your Laptop build in Wifi is too weak and always fail to get the connection
  • Alfa AWUS036NHA have solved a lot of Student Wifi hotspot problem (below)  due to our customer ( Student) Feedback. Tips, You mostly have to register your Mac Id with the hotspot service provider.

  • A must have for every laptop user because this is 10 times more poweful than your laptop built in wifi and it give your laptop a better wifi reception and respone for faster internet ascess 


  • If you fed up of having wifi access but it state limited access or no internet connection with your LapTop Built in Wifi, it is time to change to this High End Alfa AWUS036NHA with the latest Atheros AR9271 Chipset, If you have a big office space or 3 storey building sharing 1 wireless router, You definitely need this  powerful ALFA AWUS036NHA USB Wireless Adapter Wi-Fi for your desktop pc or notebook that far away and block by wall from your wireless router. It give you a good, fast and stable connection. 
  • If your are sharing  a single wireless router with your neighbour or relatives or brothers and sister,  but their house is few house away from your house, this is the best choice with ALFA AWUS036NHA USB Wireless Adapter Wi-Fi long range signal and the antenna is can be upgrade to 24 dBI from its original 5 dBI antenna which is powerful enough. Why waste $$$$ to register another internet connection while your brothers or sisters is willing to share their wireless router connection with you? 
  • Some new laptops from manufacturers like Dell and HP no longer include a PCMCIA card slot. Up until now if you bought or planned to buy one of these laptops, there would be no way for you to get a wireless connection option with an external antenna connector. This has all changed with this kit we are offering. This will work on any PC with a USB port (laptop or desktop) and is especially ideal for folks whose laptops do not have a PCMCIA slot who need a long range wireless solution! We believe that in the coming years PCMCIA cards will be a thing of the past. So even if your laptop has a slot, why not buy this kit- USB is the wave of the future and then you will be able to use this kit on any laptop you might purchase down the road. AWUS036NHA is an IEEE 802.11b/g/n Wireless USB adapter. It provides users to launch IEEE 802.11b/g/n wireless network at 150 Mbps in the 2.4GHz band, which is also compatible with IEEE 802.11b/g wireless devices at 54 Mbps. 
  • AWUS036NHA is compatible to higher-performance, multi-stream, MIMO-based 802.11n, and are available in reference designs to serve the networking, PC and consumer electronics markets. AWUS036NHA includes a convenient Utility that scans for available networks on Windows XP and saves preferred networks that users are usually connected with. Security encryption can also be configured by this utility.


  • Compatible with IEEE 802.11n, 802.11b/g/n wireless standards
  • 2.4GHz frequency band, MIMO (Multiple Input Multiple Output)
  • High gain upgradeable
  • Complies with Universal Serial Bus Rev. 2.0 specifications
  • High speed transfer TX data rate up to 150 Mbps
  • Supports wireless data encryption with 64/128-bit WEP, WPA, WPA2, TKIP, AES
  • Wide Range coverage
  • Support software AP
  • Compliant with FCC Part 15.247 for US, ETS 300 328 for Europe
  • Supports driver for Windows 2000, XP 32/64, Vista 32/64, Windows 7, Linux 2.6



Wireless: IEEE 802.11b/g/n

USB 2.0 standard

802.11b: UP to 11Mbps

802.11g: UP to 54Mbps

802.11n: UP to 150Mbps

1~11 channels ( North America)

1~13 channels ( General Europe)

1~14 channels (Japan)

802.11b : 29dBm±2

802.11g : 27dBm±2

802.11n : 27dBm±2

11b: -96dBm @ 1 Mbps

11g: -91dBm @ 6 Mbps

11n: -91dBm@HT20 MCS0

WEP 64/128

802.1X support

Wi-Fi Protected Access (WPA)



Cisco CCX support




  • Standard :    
  • Data Rate:    
  • OS support : Windows 2000, XP, Vista, Windows 7, Linux 2.6
  • Interface: USB 2.0 mini USB
  • Antenna type : 1 x 2.4Ghz RP-SMA connector
  • Antenna : 5dBi 2.4GHz Antenna
  • Frequency Range : 2.412~2.483 GHz
  • Chipset : Atheros AR9271
  • Channel:    
  • Output power :    
  • Sensitivity :    
  • Data Modulation Type : BPSK,QPSK, CCK and OFDM
  • Power : Voltage: 5V+5%
  • Security:    
  • Operating Temp : 0°C ~ +50°C
  • Storage : -10°C ~ +65°C
  • Humidity : 5%~98% non-condensing

Package Include Quantity
AWUS036NHA USB Adapter x 1
5dBi 2.4GHz Antenna x 1
Mount x 1
Mini USB to USB cable x 1
User Manual & Driver disk x 1



The signal strengths I see with the HA are typically not as strong as what I see with the H.  However, this can be misleading since the driver that the manufacturer writes controls this value, and from working on the 8187l driver, I know that it tends to be a bit optimistic.  So this in itself is not really too important.  They both saw about the same networks.  There was some variation at times, with the H tending to see a few more.  Again, this fact alone is not that important however, but consumers tend to like devices that show lots of networks, even if they can’t connect to them J.
I connected both the H and the HA to an Engenius AP so I could monitor the signal level of both devices.  This AP is about ¾ mile from me, and I am using just the standard 5db rubber antenna’s that ship with each unit.
The HA was typically giving a signal strength, on the Engenius AP, of around -78 to -82.  As low as -90db.
The H was typically giving a signal strength, on the Engenius AP, of around -73 to -80.  As low as -88db.
So, the H seemed to have a bit higher output, in this particular test.  But not substantially.
They were both able to connect to the same set of networks where I am currently located, however I need to test this in more locations which will happen as we start to move the boat in 2 weeks.  My current location is pretty limited so I don’t think there is anything conclusive from this yet.

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