--- product_id: 47929788 title: "ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black" brand: "asus" price: "0 kr" currency: DKK in_stock: false reviews_count: 13 url: https://www.desertcart.dk/products/47929788-asus-usb-bt400-bluetooth-4-0-usb-adapter-usb-2 store_origin: DK region: Denmark --- # Ultra-low latency, perfect for gaming & streaming Plug & play USB compatibility across Windows, Linux, macOS Bluetooth 4.0 for seamless connectivity ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black **Brand:** asus **Price:** 0 kr **Availability:** ❌ Out of Stock ## Summary > 🔌 Unlock seamless wireless freedom with ASUS USB-BT400 — your pocket-sized Bluetooth powerhouse! ## Quick Answers - **What is this?** ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black by asus - **How much does it cost?** 0 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/47929788-asus-usb-bt400-bluetooth-4-0-usb-adapter-usb-2) ## Best For - asus enthusiasts ## Why This Product - Trusted asus brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Convenience:** Simple setup with USB 2.0/3.0 compatibility—no tech headaches, just instant Bluetooth power. - • **Compact & Durable Design:** Tiny footprint (1.95 x 0.81 x 1.6 cm) that fits discreetly and built to last through countless connections. - • **Universal OS Compatibility:** Works flawlessly with Windows 10/8/7, Linux, and macOS Sierra—your all-in-one Bluetooth solution. - • **Effortless Multi-Device Sync:** Connect up to 4 devices simultaneously without a hitch—game nights just got upgraded. - • **Reliable Long-Range Connection:** Enhanced Bluetooth range outperforms built-in adapters—stay connected even when you step away. ## Overview The ASUS USB-BT400 is a compact Bluetooth 4.0 USB adapter designed for reliable, low-latency wireless connectivity. Compatible with multiple operating systems including Windows, Linux, and macOS, it supports simultaneous connections to multiple devices and offers superior range compared to built-in Bluetooth modules. Its plug-and-play USB interface ensures easy setup, making it an essential upgrade for professionals and gamers seeking dependable wireless performance. ## Description From the manufacturer Bluetooth 4.0 for Versatile Wireless Connectivity Bluetooth 4.0 USB Adapter 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 full backward compatibility with Bluetooth 3.0, 2.1 and 2.0. Bluetooth 4.0 adapter, backward compatible with Bluetooth 2.0/2.1/3.0 Enables wireless communication with Bluetooth-enabled computers, printers, phones, headsets, speakers, keyboards, controllers and more Bluetooth Low Energy technology for energy-saving wireless connectivity Highly portable ultra-small design Get Bluetooth 4.0 and Connect with Multiple Devices The ASUS USB-BT400 provides 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. Review: Reliable, Small & Well Priced - Perfect Bluetooth Upgrade to Older Computers - After upgrading my dated Lenovo X220 laptop to Windows 10, some of the onboard devices didn't work too well. Whilst the laptop connected via its internal Bluetooth to my BOSE mini sound link speaker, I found that the connection just dropped out after 10 or 20 mins. This only occurred after upgrading to Windows 10. The ASUS USB BT400 Bluetooth receiver was the solution, there are so many Bluetooth receivers out there and the main reasons for choosing the Asus was its trusted brand name and its price. A tiny neat slim package, similar size to a wireless mouse receiver. It plugs into any available USB port. Perfect for my docking station. Once plugged in, the internal Lenovo X220 Bluetooth was disabled via driver manager and the ASUS bt400 was enabled. It worked perfectly and solved my issue. No more drop outs. Working to the latest Bluetooth standards, you could say audio pass through quality sounds much better. Auto connect is seamless to all my devices and so far has been reliable without a single issue. An easy to use Bluetooth adaptor, couldn't have asked for more. Well priced and fast delivery from desertcart UK. Highly recommended Review: Great Bluetooth adapter - It worked very well. The connection was always stable. And it is discrete due to its size. I was very happy with this product. ## Features - Warning:Not suitable for children under 14 years. For use under adult supervision - Compatible with Windows 10/8/7 and XP (32/64 bit) and Linux and mac OS Sierra operating systems. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00CM83SC0 | | Best Sellers Rank | 2,609 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 16 in Bluetooth Network Adapters | | Box Contents | usb-bt400 | | Brand | ASUS | | Brand Name | ASUS | | Color | Black | | Colour | Black | | Compatible Devices | Laptop, Desktop, Tablet, Smartphone, Printer, Headset, Speaker, Keyboard, Game Console, Network Camera, Web, Mouse, Smart TV | | Compatible Operating System Family | Linux, Windows | | Compatible devices | Laptop, Desktop, Tablet, Smartphone, Printer, Headset, Speaker, Keyboard, Game Console, Network Camera, Web, Mouse, Smart TV Compatible devices Laptop, Desktop, Tablet, Smartphone, Printer, Headset, Speaker, Keyboard, Game Console, Network Camera, Web, Mouse, Smart TV See more | | Customer Reviews | 4.3 out of 5 stars 10,665 Reviews | | Data Link Protocol | Bluetooth, USB | | Data Transfer Rate | 3 Megabytes Per Second | | Data link protocol | Bluetooth, USB | | EU Spare Part Availability Duration | 1 Years | | Global Trade Identification Number | 00886227342488, 04716659342489 | | Hardware Interface | USB 2.0 | | Hardware interface | USB 2.0 | | Item Dimensions L x W x H | 20L x 8W x 16H millimetres | | Item Type Name | USB-BT400 Nano Bluetooth Stick | | Item Weight | 0.08 Ounces | | Manufacturer | ASUS | | Manufacturer Part Number | 112867 | | Minimum Required Operating System Version | Windows 7 | | Model Number | USB-BT400 | | Product Warranty | 1 Year Manufacturer | | Product dimensions | 20L x 8W x 16H millimetres | | UPC | 886227342488 | ## Product Details - **Brand:** ASUS - **Colour:** Black - **Data link protocol:** Bluetooth, USB - **Data transfer rate:** 3 Megabytes Per Second - **EU Spare Part Availability Duration:** 1 Years - **Hardware interface:** USB 2.0 - **Item weight:** 0.08 Ounces - **Number of Packs:** 1 - **Product dimensions:** 20L x 8W x 16H millimetres ## Images ![ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - Image 1](https://m.media-amazon.com/images/I/61n34-LgANL.jpg) ![ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - Image 2](https://m.media-amazon.com/images/I/81WKx5m8JAL.jpg) ![ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - Image 3](https://m.media-amazon.com/images/I/815+KKWOnxL.jpg) ![ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - Image 4](https://m.media-amazon.com/images/I/71V0h9FyamL.jpg) ![ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - Image 5](https://m.media-amazon.com/images/I/61bIC0FjSZL.jpg) ## Questions & Answers **Q: Is it Linux compatible?** A: Yes, with recent kernels it's fully supported. On my Debian machine, it didn't need any extra firmwares. 8.944730 usb 7-2: New USB device found, idVendor=0b05, idProduct=17cb 8.944737 usb 7-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 8.944743 usb 7-2: Product: BCM20702A0 8.944746 usb 7-2: Manufacturer: Broadcom Corp **Q: is this supplied with a software disc (drivers) no mention on the advert** A: Yes the software disc is included in the package and everything works perfectly. Just follow the instructions also supplied in the box. **Q: can it hold more than 1 connection at a time?** A: Yes. Not sure how many. But I've had 2 ps4 controllers and a BT speaker connected simultaneously **Q: does this adapter work with windows 8.1** A: Yes, works perfectly with my PC running Windows 8.1 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable, Small & Well Priced - Perfect Bluetooth Upgrade to Older Computers *by P***0 on 16 August 2020* After upgrading my dated Lenovo X220 laptop to Windows 10, some of the onboard devices didn't work too well. Whilst the laptop connected via its internal Bluetooth to my BOSE mini sound link speaker, I found that the connection just dropped out after 10 or 20 mins. This only occurred after upgrading to Windows 10. The ASUS USB BT400 Bluetooth receiver was the solution, there are so many Bluetooth receivers out there and the main reasons for choosing the Asus was its trusted brand name and its price. A tiny neat slim package, similar size to a wireless mouse receiver. It plugs into any available USB port. Perfect for my docking station. Once plugged in, the internal Lenovo X220 Bluetooth was disabled via driver manager and the ASUS bt400 was enabled. It worked perfectly and solved my issue. No more drop outs. Working to the latest Bluetooth standards, you could say audio pass through quality sounds much better. Auto connect is seamless to all my devices and so far has been reliable without a single issue. An easy to use Bluetooth adaptor, couldn't have asked for more. Well priced and fast delivery from Amazon UK. Highly recommended ### ⭐⭐⭐⭐⭐ Great Bluetooth adapter *by A***R on 20 October 2025* It worked very well. The connection was always stable. And it is discrete due to its size. I was very happy with this product. ### ⭐⭐⭐⭐ Works almost perfect *by S***N on 27 June 2019* Its a very small item but very easy to install. Just insert it into a device that doesnt already have bluetooth and boom you're done. However I feel the need to write some of my very negetive experiences with this. First of all I bought this because I have a Windows 10 computer that doesnt have built in bluetooth and I have a pair of Sony WH-CH500 wireless headphones. So I bought this, put it into the pc and bluetooth was enabled. HOWEVER, this device also comes with a CD with bluetooth software and I just have to say this as clearly as possible: DO NOT INSTALL THE SOFTWARE ON THE CD IF YOU WANT TO CONNECT BLUETOOTH HEADPHONES TO A PC. I installed the CD software and then paired my headphones while then later serverly regretting that decission. Long story short - the headphones did not work properly with the dongle. I had all sorts of problems like the audio quality being horrible, I had to manually connect the headphones in windows every time I turned them on and I even had a BLUE SCREEN at one point. After days of pulling my hair out trying to get the headphones to not sound awful (I also confirmed it wasn't the headphones fault by connecting them to my phone and they were crystal clear) I found and uninstalled the bluetooth disk software and the headphones have worked perfectly ever since. No awful sound quality and they automatically connect every time. So all in all a great device it does exactly what it says it does very simply. But for the love of god if you do try bluetooth headphones with this, make sure to just try the dongle by itself first. ## Frequently Bought Together - ASUS USB-BT400 - Bluetooth 4.0 USB Adapter (USB 2.0, 2.1, 3.0 Compatible) Black - TP-Link TL-WN823N Mini USB WiFi Adapter for PC/Laptop, 300Mbps Wireless USB 2.0, Change wired connection into Hotspot, Ideal for HD video/gaming/Streaming, Supports Windows 11/10/8.1/7/XP,Mac OS,Linux --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/47929788-asus-usb-bt400-bluetooth-4-0-usb-adapter-usb-2](https://www.desertcart.dk/products/47929788-asus-usb-bt400-bluetooth-4-0-usb-adapter-usb-2) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-24*