Asus USB-BT400 Bluetooth 4.0 USB Adapter
Asus USB-BT400 Bluetooth 4.0 USB Adapter
Hero image 0 of Asus USB-BT400 Bluetooth 4.0 USB Adapter, 0 of 3
Visit the ASUS Store

Asus USB-BT400 Bluetooth 4.0 USB Adapter

3.8 stars out of 54 reviews
(3.8)|
54 ratings

Key item features

  • Advanced Bluetooth: Most advanced Bluetooth 4.0 adapter, backward compatible with Bluetooth 2.0/2.1/3.0
  • Wireless Connectivity: Enables wireless communication with Bluetooth-enabled computers, printers, phones, headsets, speakers, keyboards, controllers, and more
  • Energy Efficient: Bluetooth Low Energy technology for energy-saving wireless connectivity
  • Ultra-Small Design: Highly portable ultra-small design, dimensions (WxDxH): 19.47 x 16.00 x 8.10 mm
  • High Data Rates: Data rates up to 3Mbps, with a distance of use over 10 meters in free space
  • Wide Compatibility: OS support for Windows 8/7/XP (32/64-bit)
  • Frequency Band: Operates in the 2.4 ~ 2.4835GHz unlicensed ISM band, using FHSS (Frequency Hopping Spread Spectrum)
  • Lightweight: Weighs only 2.2 grams, making it easy to carry and use
Generated by AI
Current price is $28.96
Price when purchased online
  • Free shipping
  • Free 30-day returns
Walmart Accident Plan by Allstate

(Only one option can be selected at a time)

How do you want your item?

How do you want your item?
Columbus, 43215
Arrives by Fri, Feb 6
|
Sold and shipped by MaxxA1
3.96742671009772 stars out of 5, based on 307 seller reviews(4.0)
Report an issue with this seller
Free 30-day returns

Continue your search on Walmart

About this item

Product details

Specifications

Warranty

Warnings

Compare with similar items

Comparison Overview:
Product

Viewing this item

Asus USB-BT400 Bluetooth 4.0 USB Adapter
Asus USB-BT400 Bluetooth 4.0 USB Adapter
current price $28.96
Asus USB-BT400 Bluetooth 4.0 USB Adapter
3.8 out of 5 Stars. 54 reviews
Bluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7
Bluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7
current price $13.25
Bluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7
3.6 out of 5 Stars. 16 reviews
USB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC Laptop
USB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC Laptop
current price $8.81
USB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC Laptop
COOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC Laptop
COOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC Laptop
current price $7.99
COOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC Laptop
USB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop Desktop
USB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop Desktop
current price $12.13
USB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop Desktop
2Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable Networking
2Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable Networking
current price $9.13
2Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable Networking
LIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop Desktop
LIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop Desktop
current price $8.76
LIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop Desktop
2Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable Networking
2Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable Networking
current price $9.67
2Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable Networking
Necvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
Necvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
current price $7.30
Necvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
Comparison Chart:
Network adapter typeWireless Network AdapterAsus USB-BT400 Bluetooth 4.0 USB AdapterWireless Network AdapterBluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7Ethernet AdapterUSB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC LaptopEthernet AdapterCOOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC LaptopEthernet AdapterUSB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop DesktopEthernet Adapter2Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable NetworkingEthernet AdapterLIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop DesktopEthernet Adapter2Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable NetworkingEthernet AdapterNecvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
ConnectionUSBAsus USB-BT400 Bluetooth 4.0 USB AdapterUSBBluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7USBUSB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC LaptopUSB 2.0 to RJ45COOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC LaptopUSB CUSB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop DesktopRJ452Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable NetworkingRJ45LIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop DesktopRJ452Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable NetworkingUSB2.0 to Ethernet RJ45Necvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
Has written warrantyNoAsus USB-BT400 Bluetooth 4.0 USB AdapterNoBluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 7NoUSB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC LaptopNoCOOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC LaptopNoUSB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop DesktopNo2Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable NetworkingNoLIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop DesktopNo2Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable NetworkingNoNecvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
Piece count-Asus USB-BT400 Bluetooth 4.0 USB Adapter1Bluetooth 4.0 USB Adapter for PC, TSV Low Energy Bluetooth USB Dongle Adapter, USB Mini Bluetooth 4.0 Dongle Compatible Windows 10 8.1 8 71USB 2.0 to Ethernet Adapter USB 2.0 to RJ45 Ethernet LAN Networking Adapter Cable 100/10Mbps Converter For PC Laptop1COOLHOOD USB 2.0 to Ethernet Adapter USB to RJ45 Supporting 10/100Mbps Ethernet Networking Adapter Dongle Converter For PC Laptop1USB C to Ethernet Adapter USB C to Ethernet LAN Networking Adapter 1000Mbps RJ45 Internet Adapter for Laptop Desktop22Pcs USB to RJ45 Ethernet Adapter USB Female to RJ45 Male Network Dongle for Laptops Routers 100Mbps Reliable Networking1LIANXUE USB to Ethernet Adapter USB 2.0 to Ethernet LAN Networking Adapter 100Mbps RJ45 Internet Adapter for Laptop Desktop22Pc USB to RJ45 Ethernet Adapter USB Female to RJ45 Male NetworkingDongle for Laptop Routers 100Mbps Reliable Networking1Necvior USB2.0 to Ethernet RJ45 Adapter Gigabit Networks Adapter Supporting 10/100Mbps for Desktop Tablet
Now hiding additional rows in the Table

Customer ratings & reviews

3.8 out of 5 stars
stars54 ratings41 reviews
How item rating is calculated
  1. 5 stars57% (31)
  2. 4 stars13% (7)
  3. 3 stars7% (4)
  4. 2 stars2% (1)
  5. 1 star20% (11)

Customer images

Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 41 reviews

Aug 31, 2025
Jayce
Sold and shipped byUrban Essentials LLC
5 out of 5 stars review

Verified Purchase

Really good and Fast And honestly I'm Surprised There's Not at least 0.5 Millisecond input delay I would Recommend :D

Incentivized Review
Helpful?48ABHEKM5Q5S34972609
Oct 29, 2025
RB
Sold and shipped byUrban Essentials LLC
5 out of 5 stars review

Verified Purchase

Item was delivered on time.

Incentivized Review
Helpful?48ABHEKM5Q5S34972609
Mar 28, 2024
Darkron
5 out of 5 stars review

Verified Purchase

Found an older ASUS BT adapter that works for me

I am a user of ChromeOS FLEX on my old desktop. I had been using an ancient USB Bluetooth adapter. I found out about a month ago that not all of my Bluetooth devices would connect to my computer, specifically my headphones and my headphone-mic. I learned that the latest Linux compatible adapter was not supported by FLEX. Doing some research, I found that a prior version that was manufactured by ASUS was supported. This one works great.

Helpful?48ABHEKM5Q5S34972609