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ASUS USB-BT400 USB 2.0 Bluetooth 4.0 Adapter

MPN: USB-BT400 | SKU: IW2838
Regular Price: $21.99
Price: $15.95
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  • Brand NEW, Packaging : Retail
  • 1 Year Mfg Warranty
  • ASUS USB-BT400
  • ASUS USB-BT400 Wireless Network Bluetooth v4.0 USB2.0 3Mbps USB Adapter
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  • Key Selling Points

Key Selling Points

  • Brand NEW, Packaging : Retail
  • 1 Year Mfg Warranty
  • ASUS USB-BT400
  • ASUS USB-BT400 Wireless Network Bluetooth v4.0 USB2.0 3Mbps USB Adapter
  • Description
  • Product Details
  • Customer Reviews
  • Q&A


Asus Bluetooth 4.0 usb adapter. The Asus USB-BT400 gives your system the ability to transfer data wirelessly to mobile devices and will allow use of Bluetooth keyboards and mice. Insert this USB BT400 Bluetooth adapter into a dedicated USB 2.0 port for best results. Bluetooth Dongle 4.0. The USB-BT400 is a Bluetooth Smart Ready USB adapter with Bluetooth 4.0 capabilities. It connects you with a multitude of compatible devices and supports Bluetooth Low Energy (BLE) to reduce power consumption. In dual-mode, the USB-BT400 maintains fully backward compatibility with Bluetooth 3.0, 2.1, and 2.

  • Enable Bluetooth Wireless on your system
  • Transfer files and use wireless peripherals
  • USB 2.0
  • Bluetooth 4.0
  • Up to 3.0 Mbps Transfer rate


  • ASUS USB-BT400 USB 2.0 Bluetooth 4.0 Adapter

Brand: Asus


UPC: 886227502752

Compatibility: USB 2.0, Bluetooth 2.0/2.1/3.0/4.0

Packaging: Retail

Condition: New

Product Details

USB 2.0
Bluetooth Standards
Bluetooth 4.0
Transfer rate
Up to 3.0Mbps
Integrated Antenna
Over 10 meters in free space
Radio Frequency
2.4 ~ 2.4835 GHz unlicensed ISM band
Operating Systems Supported
Windows 8, 32-bit / 64-bit
Windows 7, 32-bit / 64-bit
Windows XP, 32-bit / 64-bit
Spectrum: FHSS (Frequency Hopping Spread Spectrum)

Most advanced Bluetooth 4.0 adapter, backward compatible with Bluetooth 2.0 / 2.1 / 3.0

Enables wireless communication with Bluetoothenabled computers, printers, phones, headsets, speakers, keyboards, controllers, and more

Bluetooth Low Energy technology for energysaving wireless connectivity

Highly portable ultrasmall design

Profile / protocol support:
4.0 Host Controller Interface
Advanced Audio Distribution Profile
AMP Host Controller Interface
AMP Manager Protocol
Attribute Protocol
Audio / Video Control Transport Protocol
Audio / Video Distribution Transport Protocol
Audio / Video Remote Control Profile
Basic Imaging Profile
Basic Printing Profile 1.2
Bluetooth Network Encapsulation Protocol
Device ID Profile
DialUp Networking Profile
File Transfer Profile
Find Me Profile
Generic Access Profile
Generic Attribute Profile
Generic Audio / Video Distribution Profile
HandsFree Profile
Hardcopy Cable Replacement Profile
Headset Profile
Host Controller Interface
Human Interface Device
Interoperability Test Specification
Logical Link Control and Adaptation Protocol
Message Access Profile
Object Push Profile
Personal Area Networking Profile
Phone Book Access Profile
Proximity Profile
RFCOMM with TS 07.10
Security Manager Protocol
Serial Port Profile
Service Discovery Application Profile
Service Discovery Protocol
Synchronization Profile
Video Distribution Profile
0.32" x 0.77 x 0.63"
0.01 lb.
Electrical Outlet Plug Type
Consumer Electronics

Package Includes

Customer Reviews

Review Summary
49.02% (25)
13.73% (7)
13.73% (7)
3.92% (2)
19.61% (10)
By Rainy Dizon
Easy to install. 100% working.
Bought this one for my Windows 10 PC to connect my AirPods and it's working great!!! For AirPods user, make sure to set it to Headphones(Stereo) for better sound quality. If you want to use your AirPods microphone at the same time, set it to Headset (Hands-free) but the sound quality is poor.
By Richard Byrum
Outstanding product
Worked perctly of course Win 10 wanted load it's own drivers for . We are all use to that by now.
By anonymous shopper
Item fell apart when i touched it
Worst product i have ever bought.
By Ella Miller
After having to uninstall and reinstall the software three times to get it to connect with my beats earbuds i thought, "ah, sweet. Now i'm set".Wrong. Popped on a video and the audio was split in and out with static. I'm about ten feet away at most. Some real bogus reviews here.I thought i'd risk it seeing mixed reviews. Should have known being they were all one star or five stars.Must be some paid reviews garbage going on here.Rip off.Edit: usually after a review like this, most sellers on outletpc would reach out to make it right.I've heard nothing, so obviously they just want to get your money and leave you with their garbage broken product.
By Logan Carroll
Reliable bluetooh reciever
One of my pcs does not have enough pci-e slots for all my devices. I bought this hoping it would be a good alternative. Works great with my xbox one controller for pc gaming. Using it on a windows 10 pc and the device was detected right and the driver was automatically installed.
By Kay Walters
Absolute atrocity with windows 10
I don't know if this is the fault of microsoft or asus, but the wireless "dung"-le is absolutely useless. Time and time again i go to the asus website, download the current drivers, and end up able to connect my bluetooth devices maybe once or twice until the next time all i get is driver errors. Then rinse & repeat. I'm absolutely done with this usb garbage. Don't bother with buying this rubbish.
By Jacob Olsen
Stutters way too often
I have this setup on my desktop 2-3 feet away from my wireless headphones. Every 10-15 seconds it will fade and stutter for a few seconds before speeding up the audio to catch up to the video/song. Extremely frustrating and jarring every time it happens.
By Laurent Rodriguez
Five stars
Works great on old pc tower. Now i back up phones pics and contacts to pc
By Arianna Welch
Five stars
Its good stuff
By Siiri Sakala
I bought this to see if i could get better range than the bluetooth that came with my pc
I bought this to see if i could get better range than the bluetooth that came with my pc. It's about half the range so that was a big waste.


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ASUS USB-BT400 USB 2.0 Bluetooth 4.0 Adapter

Price: $15.95
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