![Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics](https://m.media-amazon.com/images/I/713jd32qEHL._AC_UF894,1000_QL80_.jpg)
Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics
![Amazon.com: Bluetooth CSR 4.0 USB Dongle Adapter, EKSEN Bluetooth Transmitter of Electronic Signals for Windows 10/8/7/Vista - Plug and Play on Win 8 and Above - White : Electronics Amazon.com: Bluetooth CSR 4.0 USB Dongle Adapter, EKSEN Bluetooth Transmitter of Electronic Signals for Windows 10/8/7/Vista - Plug and Play on Win 8 and Above - White : Electronics](https://m.media-amazon.com/images/I/619i37eU1aL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Bluetooth CSR 4.0 USB Dongle Adapter, EKSEN Bluetooth Transmitter of Electronic Signals for Windows 10/8/7/Vista - Plug and Play on Win 8 and Above - White : Electronics
![Chinese Bluetooth dongle not working (Cambridge Silicon Radio, Ltd Bluetooth Dongle, ID 0a12:0001) : r/linux4noobs Chinese Bluetooth dongle not working (Cambridge Silicon Radio, Ltd Bluetooth Dongle, ID 0a12:0001) : r/linux4noobs](https://external-preview.redd.it/FeAaZ0rZrSCpomz60BEx9qdTFi-tZmdornFTg_MjEWw.jpg?auto=webp&s=0e256954a179ee1a93cfad36e6f047b8522c9861)
Chinese Bluetooth dongle not working (Cambridge Silicon Radio, Ltd Bluetooth Dongle, ID 0a12:0001) : r/linux4noobs
![Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics](https://m.media-amazon.com/images/I/81QarmfL36L._AC_UF894,1000_QL80_.jpg)
Amazon.com: BlueDot Trading Mini Bluetooth Smart Low Energy Dongle Adapter, CSR 4.0 CSR4.0 Compliant, USB 2.0, for Windows 8 7 XP, Laptop Desktop PC : Electronics
![Download and install Cambridge Silicon Radio Limited CSR-Realtek BlueCore Device - driver id 1399832 Download and install Cambridge Silicon Radio Limited CSR-Realtek BlueCore Device - driver id 1399832](https://www.drivermax.com/download/Cambridge-Silicon-Radio-Limited-CSR-Realtek-BlueCore-Device_using_drivermax_1399832.jpg)
Download and install Cambridge Silicon Radio Limited CSR-Realtek BlueCore Device - driver id 1399832
![USB Bluetooth-Compatible Adapter V4.0 Dual Mode Wireless Dongle CSR 4.0 USB 2.0 Transmitter Audio Receiver For Windows 10 8 7 - AliExpress USB Bluetooth-Compatible Adapter V4.0 Dual Mode Wireless Dongle CSR 4.0 USB 2.0 Transmitter Audio Receiver For Windows 10 8 7 - AliExpress](https://ae01.alicdn.com/kf/Sb0210a2b547a4db49460b9335c0ea73fj/USB-Bluetooth-Compatible-Adapter-V4-0-Dual-Mode-Wireless-Dongle-CSR-4-0-USB-2-0.jpg)