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ASUS USB Adapter with Bluetooth (USB-BT400)

by Asus
4 out of 5 stars 686 customer reviews
| 136 answered questions
List Price: $14.99
Price: $12.29 & FREE Shipping on orders over $49. Details
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Post-purchase rebate: $5.00 Rebate forms
Price after rebate: $7.29
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  • Enter your model number above to make sure this fits.
  • Bluetooth 4.0 USB Adapter
  • USB 2.0, Up to 3Mbps and Over 10 meters in free space
  • Frequency Band: 2.4~2.4835GHz unlicensed ISM band
  • OS Support: Windows 8 , 32bit/64bit / Windows 7 , 32bit/64bit / Windows XP , 32bit/64bit
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  • ASUS USB Adapter with Bluetooth (USB-BT400)
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Total price: $52.28
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Product Information

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Wireless Type Bluetooth
Other Technical Details
Brand Name Asus
Item model number USB-BT400
Item Weight 2.7 ounces
Product Dimensions 5.4 x 8.8 x 5.9 inches
Item Dimensions L x W x H 5.4 x 8.8 x 5.9 inches
Color Black

Additional Information

ASIN B00DJ83070
Customer Reviews
4 out of 5 stars 686 customer reviews

4 out of 5 stars
Best Sellers Rank #30 in Computers & Accessories > Networking Products > Network Adapters > Bluetooth Network Adapters
Shipping Weight 12 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available June 21, 2013

Warranty & Support

Warranty, Labor:2 Year Limited WarrantyAmazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsSuperb Product ... you may need to enable a Windows service to get it to work
By Thomas on September 4, 2014
Verified Purchase
Okay ... to start off it was NOT DETECTING my bluetooth devices at first when I clicked "Add a Device"
After some google search I found that the reason could be that the bluetooth service is stopped/disabled in my Windows services.
Turns out that was the reason. Enabled it and started. Working perfectly fine now.

Here are the steps:

Go to Windows Services (Start -> Run -> services.msc -> OK)
There were two services there "Bluetooth Service" and "Bluetooth Support Service"
Bluetooth Support Service was disabled. I enabled it and started it.
Voila ... my bluetooth devices started to get detected.
6 Comments 46 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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5.0 out of 5 starsWorking fine with Linux (Ubuntu 13.10, 3.11.0-15 kernel)
By Dale Frye on February 16, 2014
Plugged in and was recognized by Ubuntu 13.10, 3.11.0-15 kernel. Others have stated this does not work with Linux. I found that the id had been added to the kernel in October 2013. Before the id was added Linux would not have recognized it.

I did have issues actually getting my bluetooth device to work but I blame the bluetooth support in Linux. Linux saw the ASUS adapter and found my bluetooth headphones. I was able to config the headphones as an audio device but would not get any sound. I researched and played with the settings in /etc/bluetooth/audio.conf finally getting sound. Listening to Pandora via Ubuntu as I type.
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5.0 out of 5 starsWorks perfectly with my CronusMAX/ControllerMAX on my Playstation 3.
By William Grose TOP 1000 REVIEWERVINE VOICE on April 23, 2014
Verified Purchase
I needed a Bluetooth adapter for my Playstation 3 so I could use my Playstation 4 controller wirelessly with the CronusMAX/ControllerMAX adapter.

I'm pleased to say the Asus USB-BT400 works perfectly, with zero detectable latency (it passes the Hot Shots Golf/Dance Dance Revolution test).

So, if you need a BT adapter for this sort of gaming awesomeness, the Asus is full of win.

Also to note, if you don't like LEDs, the Asus has a tiny blue one that you'll never notice because it's covered by an FCC sticker. Yay!

5 stars out of 5.
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3.0 out of 5 starsHandle with Kid Gloves
By Jake Laack on September 7, 2014
Verified Purchase
I enjoyed this item immensely. ...while it was all in one piece. I'd had it plugged into the front USB port of my PC for a couple months. I decided to move it to one of the back ports and tried to pull it out. The black plastic nub pulled right off. I was able to get the rest of the adapter out with my fingers easy enough, but the pieces inside, a tiny circuit board and black plastic used to hold it in place, slid right out. The black nub seems to hold the entire adapter together on the inside using a tiny plastic-pointy-thing™, no glue or anything else. I tried to piece it back together but could not make it work again. If you buy this, take great care if you ever need to move it.
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5.0 out of 5 starsWorks as advertised.
By Vu B. Nguyen on October 22, 2013
Verified Purchase
Using this on Win 7 pro 64-bit to pair my beats wireless headset for use with skype and everything else on a custom pc built in late 2009. Tired of wired headsets and wanted to give this a try before looking for an official, expensive wireless usb headset. Works very well, automatically searches and pairs with my beats when win 7 boots and have gone approximately 50 ft from my bedroom where the pc is located without diminishing call quality. Overall, very satisfied with the product and hope it continues to work without problems for months or even years to come. I've supported Asus for over 10 years now and will continue. Awesome company and products.
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5.0 out of 5 starsEasy installation
By K. L. Petronis on November 9, 2013
Verified Purchase
Easy peasy installation. I had a terrible time with a competitor's product (Medialink/Broadcom) including company replaced hardware; I finally decided to try a different device and chose the ASUS based on reviews here. Windows 7 seems to like this a whole lot better, and connecting with my Bose headphones was a snap. So far so good. If I can do this, anyone can.
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5.0 out of 5 starsFast & stable
By Terry Stefanski on January 5, 2014
Verified Purchase
I previously had a USB-BT100 that did not integrate well with Windows 7 Professional 64 bit. It would drop out frequently, and did not support streaming audio. This unit installed without any issues, and has been very stable, and very fast. Very happy with this device.
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1.0 out of 5 starsNot compatible with Windows 10 / Bad software
By Douglas on September 8, 2015
I've been running Windows 10 since the day of release with no issues. Granted the packaging only for this item claims compatibility with up to Windows 8.1. I plugged this adapter in, Windows 10 identified it immediately without installing the drivers, and the Bluetooth console was installed on the tray. I was able to pair my phone without a hitch, but after it paired the Windows Bluetooth management screen stuck on "Your PC is searching for and can be discovered by Bluetooth devices". Any attempts to transfer a file from my phone failed.

I went into the Device Manager and selected Update Device Driver/Automatically from Internet. An updated driver was downloaded and installed. Same result.

Lastly I tried downloading the Bluetooth device utility from Asus's website. The driver software install is over 170MB! It installed every language and a lot of unnecessary files. It took several minutes to install and while it did it offered a slideshow of everything it promises to do (use your phone as a webcam for your computer, use your phone as a proximity lock for your computer, etc.) After installation there is no icon to run the Asus drivers and everything was the same. I tried unplugging and replugging the device and immediately got a blue screen.

Uninstalling, unplugging and returning.
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Most Recent Customer Reviews

2.0 out of 5 starsDoes not seem to work for Windows 10 - BSOD

Bought this for my windows 10 desktop. Was able to connect my Bose Bluetooth headphones for all of 20 minutes after I fiddled around with Windows interfaces to even switch to audio... Read more

Published 12 days ago by thothsscribe
4.0 out of 5 starsASUS USB Adapter with Bluetooth

This little BT device didn't work very well with my Late 2011 Macbook but it does work as expected on other devices that lack BT capabilities.

Published 16 days ago by Juan
5.0 out of 5 starsFive Stars

Works exactly as advertised.

Published 16 days ago by T-DUBBA D.
4.0 out of 5 starsFour Stars

Fine product, timely delivery.

Published 18 days ago by Rick Block
5.0 out of 5 starsFinally a BT adapter that WORKS!

It's been miss or miss for me with Bluetooth adapter-dongles, where they pretty much fail to work at all - or at least for what I need them to do. Read more

Published 24 days ago by Call of Kthalia
3.0 out of 5 starsThree Stars

Didn't work for me.

Published 25 days ago by shaunwinter
5.0 out of 5 starsPerfect For Any Bluetooth Needs

I bought this for my desktop computer, which didn't come with Bluetooth. I'm pleased to say that everything works properly. Read more

Published 26 days ago by Rob S.
5.0 out of 5 starsGreat product, but susceptible to interference when you come ...

Great product, but susceptible to interference when you come between the dongle and what you're connecting to. That's to be expected though. Easy set up.

Published 27 days ago by Amazon Customer
5.0 out of 5 starsFive Stars

very good

Published 1 month ago by Leszek Dabrowski
2.0 out of 5 starsTwo Stars

Very slow to connect to anything. Range is very limited.

Published 1 month ago by N

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