Search  for anything...

TP-Link USB Bluetooth Adapter for PC(UB400), 4.0 Bluetooth Dongle Receiver Support Windows 11/10/8.1/8/7/XP for Desktop, Laptop, Mouse, Keyboard, Printers, Headsets, Speakers, PS4/ Xbox Controllers

  • Based on 51,117 reviews
Condition: New
Checking for product changes
$9.99 Why this price?
Save $2.00 was $11.99

Buy Now, Pay Later

As low as $2 / mo
  • – 4-month term
  • – No impact to credit
  • – Instant approval decision
  • – More plans available at checkout

Selected Option

Free shipping on this product

Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Apr 11
Order within 1 hour and 17 minutes
Available payment plans shown during checkout

Style: Bluetooth Adapter 4.0


  • NOTE: The item is compatible with windows 11/10/8.1/8/7/XP. However, on the box there is limited space so the manufacturer do not list all of the versions and just list the most recent versions of windows
  • Bluetooth 4.0 applies the latest Bluetooth 4.0 and it is backward compatible with Bluetooth V3.0/2.1/2.0/1.1. Ub400 turns non-Bluetooth PC or laptop into Bluetooth-capable ( PS4 & XBox Controllers for PC Only )
  • Plug & play or free driver plug and play for Win 8, 8.1, 10, and 11. Supports Win7, XP (driver required for Win7, XP and could be downloaded from website free of charge). it is not compatible with Mac, Linux, TV
  • Nano-sized a sleek, ultra-small design means you can insert the Nano adapter into any USB port and simply keep it there, no matter when you are traveling or at home
  • Reliability enable wireless communication with Bluetooth-enabled computers, printers, phones and headsets. Utilize Bluetooth low energy) technology for energy-saving wireless connectivity. Operating Temperature-0C-40C (32F -104F)
  • Broad operation range with a transmission distance of up to 65 ft, you can enjoy lossless music via your Bluetooth headset without hovering around your computer
  • Kind reminder: UB400 is not compatible with Mac, Linux, TV. UB400 is for PC use only so PS4/Xbox controllers could be used on PC, and is not to be used directly on Xbox/PS4. Two UB400 cannot pair with each other.
  • Please note that existing internal Bluetooth function needs to be disabled to utilize UB400


UB400 is highly portable and much smaller than a flash drive. Plug and play inwin8/8.1/10 systems to enjoy a wireless communication with Bluetooth- enableddevices. Ub400 supports advanced Bluetooth 4.0 and enables wireless connectivity a wide range of devices such as computers, printers, phones, headsets, speakers, keyboards, controllers, etc.Mounting Hardware :Bluetooth 4.0 Nano USB Adapter UB400 , Quick Installation Guide.

Number of USB 2.0 Ports: ‎1

Brand: ‎TP-Link

Series: ‎UB400

Item model number: ‎UB400

Operating System: ‎Windows 11/10/8.1/8/7/XP

Item Weight: ‎0.353 ounces

Product Dimensions: ‎0.74 x 0.58 x 0.27 inches

Item Dimensions LxWxH: ‎0.74 x 0.58 x 0.27 inches

Color: ‎Black

Manufacturer: ‎TP-Link

Country of Origin: ‎Vietnam

Date First Available: ‎July 27, 2019

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Klarna Pay in 4
  • ViaBill Easy Monthly Payments
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews

  • it works,
it works, easy plug and play, at BT 4.0 (as advertised) windows-10 64bit on a Dell inspiron minitower, seamless plug and play, tested for BT headphones and BT amp (aiyima) audio... P&P used native win10 drivers (nothing downloaded or updated) linux (fedora 36) on a Dell inspiron minitower, seamless plug and play, tested with BT headphones and aiyima BT5 amp, it does not support the A2DP-aptX-HD codec for sound (probably a bandwidth or speed limitation), but it does support all other A2DP drivers/codecs (incl A2DP with SBC/aptX/aptX-LL/SBC codecs)... fedora 36 workstation used preexisting drivers (nothing downloaded or updated)... ... show more
Reviewed in the United States on January 1, 2023 by Maria del Mar

  • Great Quick Fix For Bluetooth Connectivity
This Bluetooth adapter does exactly what you would think. I was able to easily plug this into my laptop for quick Bluetooth connectivity, which I needed as an easier fix for my malfunctioning internal Bluetooth card. The adapter comes with a small disk that contains drivers, if needed, but my laptop was able to recognize and automatically find the necessary drivers to let me start using the adapter right away. It's small profile let's me be able to leave the adapter plugged into the laptop during travel without worry of dragging against my bag or snagging on anything while removing my laptop from the pouch. It's always a bit of a sacrifice to have to lose a usb port to keep this adapter in place, but there are always other adapters available that can solve this issue. I'd say that if you need a quick on-the-go fix for Bluetooth connectivity and either don't have the time and/or confidence to disassemble a computer to replace the actual wireless card itself, this is a great and cost-effective solution. ... show more
Reviewed in the United States on November 27, 2022 by T2Blazer

  • Works as advertised
Got this in the mail today, and immediately plugged it into my PC, which is custom-built and runs on Win10. When I custom-built my PC, I did not include Bluetooth capability. The dongle works as easily as advertised! I plugged it into a USB port and a couple minutes later I was able to connect to my Shearwater Perdix 2 dive computer. Downloading all dive and settings data from the Perdix 2 to my Shearwater desktop app was smooth and flawless. I definitely recommend this product! I'm going to be ordering another one for my laptop computer. ... show more
Reviewed in the United States on December 23, 2022 by kwajwreckdiver

  • Works great, plug and play on Windows 10
UPDATE: after testing another dongle (was not working) I came to the conclusion that it must have been some recent windows update that broke the driver or something (registry issue?). So I refreshed my Windows 10 (reinstalled from the cloud) and now it's working fine. I didn't try it on the other machine so maybe the other has the same issue. Previous comment (partial) It worked... then today it stopped. It took me quite some time to finally test it on another machine with a working BT (disable/enable to test one then the other) to narrow down the issue not to a driver but to the dongle having an issue (radio level it looks like). ... show more
Reviewed in the United States on December 17, 2022 by Oli WA

  • Does what it needs to... Not the best though.W
Was easy to setup and fully compatible with Windows 10 + my Sony WH-1000XM4 headphones. However, like all other usb plug-in Bluetooth adapters I find that this one occasionally has hiccups in transferring data wirelessly (aka music cuts off once in a while). All considered, a decent item that gets the job done. ... show more
Reviewed in the United States on January 4, 2023 by Pearson Chu

  • Slight improvement to the stock bt in my laptop
Bought this for my full body tracking, i have noticed a reduction in drift. Lowering the score cause being across the room drastically reduced the performance despite its claims of long distance use. Accross the room for me is maybe 10ft.
Reviewed in the United States on January 6, 2023 by Elian

  • Works fine, as advertised, but take NOTE WINDOWS 11 USERS
I have used this for years with no problem, but when I upgraded to Windows 11, it apparently suddenly conflicted with the motherboards own Bluetooth receiver, and was giving me all kinds of problems. It repeatedly said the drivers were busted, but it was only when I read another review on here, and fully disabled my motherboards own bluetooth receiver that suddenly all the drivers began working fine. So despite what some of the other reviews on here will tell you, this will function on Win 11, just make sure to disable any internal Bluetooth receivers your Mobo might have in the device manager. ... show more
Reviewed in the United States on December 9, 2022 by Roberto R.

  • Really came in handy on my gaming pc
I feel so dumb I spent over $2000 building my pc and I didn’t realize about my Bluetooth component. This has saved me so much since I can connect multiple items. FYE the one at best buy is trash this is better quality
Reviewed in the United States on January 2, 2023 by A'mee B.

Can't find a product?

Find it on Amazon first, then paste the link below.