WiFi and Bluetooth® v4.0 Dual Mode USB Module – LM811 – Bluetooth and WiFi Modules and Adapters – LM Technologies
DIY Bluetooth USB Dongle, for HM10 Modules | PCB From PCBWAY.com - YouTube
Bluetooth Adapter for Keyboard & Mouse « Handheld Scientific, Inc.
Amazon.com: Long Range USB Bluetooth Adapter for PC USB Bluetooth Dongle Wireless Bluetooth Adapter for Headphones Speakers, 328FT / 100M,5.0 Bluetooth Transmitter Receiver for Windows 10/8 / 8.1/7 : Electronics
Baseus BA04 Bluetooth Adapter 5.1 (black) - miStores.sk