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ASUS USB-BT400 Bluetooth 4.0 USB Adapter

This ASUS Product Features: 1. BlueTooth 4.0 adapter, 2. upto 30 feet coverage, 3. support wireless music play, 4. Micro Size, 5. 2 years warrenty
ASUS USB-BT400 Bluetooth 4.0 USB Adapter - 1
Actual product may not be exactly as shown.
ASUS USB-BT400 Bluetooth 4.0 USB Adapter - 85678_l.jpg ASUS USB-BT400 Bluetooth 4.0 USB Adapter - 85678_1.jpg Customer Photos (0)
Reg. Price: $20.99  CAD
After Mail In Rebate: $10.99 CAD
Save $10.00 with manufacturer's mail-in rebate!
Valid from Sep 01, 2017 to Sep 30, 2017. Limit 1 rebate(s) per customer. Other conditions may apply.
Available for Drop Ship

This item is in stock for drop ship and will ship as soon as possible. Usually ships in 3-5 business days..

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Part #: USB-BT400

SKU: 85678
Shipping Weight: 0.2 lbs
Shipping estimate: $5.99*
*Via NCIX selected courier.

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Customer Reviews of ASUS USB-BT400

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding ASUS USB-BT400 reviews.
Experience: 9 Months

Home Theatre PC


Price, not much out there for what you are looking for as far as just Bluetooth receiver.
The range is not great and you need to be in line of sight, starts to get loss connection if you leave room.
Added it to an older Home Theatre PC with Windows 8.1, works as expected, bit of delay at times, but could be Operating System. I am happy.

Experience: 8 Months

nice and cheap


small, plug and play
over all for the price its a good product, i play on my pc with an xbox one controller and work fine.

Experience: 18 Months

Great product


Small, works great, easy install
Free with my ncix points and works great on older laptops with Bluetooth 2.0 or less.

Experience: 10 Days

Not impressed Verified OwnerVerified Owner


It's working...
The range is not that great
Quite sensible to interference
It's ok, but the performance are not impressive at all.

Experience: 6 Months

Well... it works Verified OwnerVerified Owner


Range doesn't seem to be as good as advertised
I use this to connect a PS4 dualshock controller to my PC... but I get input lag if the controller moves further than 5 feet away from the computer.

Mr. Donut
Experience: 3 Months

decent enough for most use


easy to install
reliable brand
range is short
objects can cause interference
overall its great for the price

Experience: 1 Months

OK but... Verified OwnerVerified Owner


Got it for free using mail rebate
Takes long time to connect with devices. Had to switch it on and off... The devices would sometimes recognize the adapter first... Also, not immediately compatible with Chrome OS.
I won't complain further since I got this product without having to pay anything.

Experience: 2 Years

Good fit for casual use


Plug n'play
Little range
Can get laggy if obstacles in the way (or interference?)
Use it for mouse and keyboard. I experience few laggy moments if I don't look out for obstacles, mostly when further than 6 feet.
Overall, perfect for casual desktop use

Carl James_C
Experience: 4 Days

It is awesome


fast for bluetooth cheaper
great for bluetooth electronics

Experience: 2 days


Compatible with almost all Bluetooth versions Small form
I had an old Jabra BT device for my console where I wanted to use for my PC headset as well. Sound was crisp even at a 12 feet distance. Download the latest drivers from the Asus website.

Product Videos [ Edit ]

Features [ Edit | History ]


New generation Bluetooth 4.0 for versatile wireless connectivity

The USB-BT400 is a Bluetooth Smart Ready USB adapter with new 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 full backward compatibility with Bluetooth 3.0, 2.1, and 2.0.

Get Bluetooth 4.0 and connect with multiple devices

The ASUS USB-BT400 provides new and advanced Bluetooth 4.0 and enables wireless connectivity with a wide range of devices such as computers, printers, phones, headsets, speakers, keyboards, controllers, and more. In addition, the ultra-small USB-BT400 comes with Bluetooth Low Energy (BLE) technology, which lets you enjoy energy-saving connectivity.

Quick Specs:
Host Interface USB
Device Supported Desktop Computer/Notebook
Weight (Approximate) 0.08 oz
Form Factor External
Wireless Transmission Speed 3 Mbit/s
Height 0.3"
Width 0.6"
Depth 0.8"
Bluetooth Standard Bluetooth 4.0
ISM Band Yes
UNII Band No
Indoor Antenna Range 32.8 ft
ISM Maximum Frequency 2.48 GHz

Specifications [ Edit | History ]

General Information  
     Brand Name: Asus
     Manufacturer: ASUS Computer International
     Manufacturer Part Number: USB-BT400
     Manufacturer Website Address:
     Product Model: USB-BT400
     Product Name: Bluetooth 4.0 USB Adapter
     Product Type: Bluetooth Adapter
     Host Interface: USB
     Device Supported: Desktop Computer/Notebook
     System Requirements: Operating Systems:
  • Windows 8 32bit/64-bit
  • Windows 7 32bit/64-bit
  • Windows XP 32bit/64-bit

Physical Characteristics  
     Depth: 0.8" (19.5 mm)
     Form Factor: External
     Height: 0.3" (8.1 mm)
     Weight (Approximate): 2.2 g
     Width: 0.6" (16 mm)
Technical Information  
     Bluetooth Standard: Bluetooth 4.0
     Indoor Antenna Range: 32.8 ft
     ISM Band: Yes
     ISM Maximum Frequency: 2.48 GHz
     ISM Minimum Frequency: 2.40 GHz
     UNII Band: No
     Wireless Transmission Speed: 3 Mbit/s

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Messages about ASUS USB-BT400 Bluetooth 4.0 USB Adapter

Not eligible for manufacturer's rebates or of (Murray_B- May 07, 15, 1 Replies)

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Product Warranty

NCIX provides a 30 day limited warranty on this product.  The remainder of the 1 year warranty is provided by the manufacturer.    Warranty length may vary depending on manufacturer and product.

Video Cards:
All ASUS VGA cards purchased after January 1st, 2001 will carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

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All ASUS audio cards carry 3 year warranty services from purchase date. ASUS product warranty is based on the serial number printed. First 30 days limited warranty is through The remainder of the 3 year warranty is provided directly by ASUS. For more details, please visit

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For ASUS branded notebooks (not including Eee products and Built-on ASUS):

Complete Customer Care Package

One of the industry’s most complete customer care packages offers a level of coverage that adds to the price of competing products:

  • 1 Year Global Warranty (estimated $100 value, FREE)
  • 30-Day Flawless Display Guarantee: If you discover one defective bright dot within 30 days of purchase, ASUS will replace the panel at no cost.
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  • 24/7 tech support: 1-888-678-3688

Accidents Happen

You have extra protection when they happen to your ASUS notebook purchased in the US or Canada. ASUS will fix it or replace it for you at no charge during the first year after purchase in the event of damage from accidental spills, drops, electrical surges, or fire.

  • Warranty covering accidental drops, spills, power surges, and fire damage
  • Target 3 business day turnaround time for repair / replacement; not including receiving and shipping time
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  • One incident covered per notebook


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