Amazon.com: Cable Matters USB Bluetooth Adapter (USB to Bluetooth 4.0 Adapter) for Windows 10, 8.1, 8, 7, Vista, XP, Raspberry Pi in Black : Electronics
USB Bluetooth 4.0 Adapter - 10m Class 2 - Bluetooth & Telecom Adapters | Networking IO Products | StarTech.com
Bluetooth USB Adapter Bluetooth 4.0 USB Dongle Low Energy for PC Wireless Dongle for Stereo Music Keyboard Mouse Support Windows 10 8.1 8 7 XP vista - Newegg.com
BleuIO - Create Bluetooth Low Energy application
IOGEAR GBU521W6 Bluetooth 4.0 Bluetooth Adapter for Desktop Computer/Notebook/Tablet/Smartphone - GBU521W6 - Wireless Adapters - CDW.com
Bluefruit LE Friend - Bluetooth Low Energy (BLE 4.0) - nRF51822 [v3.0] : ID 2267 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: TP-Link USB Bluetooth Adapter for PC, Bluetooth 4.0 Dongle Receiver, Plug & Play, Nano Size, EDR & A2DP Technology, Supports Windows 11/10/8.1/8/7/XP for Desktop, Laptop, PS4/ Xbox Controllers (UB400) : Electronics
MiniOne PCR System Bluetooth Low Energy Dongle for Mac/PC • MiniOne Systems
USB Bluetooth 4.0 Adapter | Advantage Software
Amazon.com: Hideez USB Bluetooth 4.0 Adapter for PC, macOS, Linux, ChromeOS, Raspberry Pi – Low Energy, Long Range Bluetooth EDR Dongle for Mouse, Keyboard, Headphones, Speakers, Printers : Electronics
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: USB Bluetooth Dongle, QGOO Bluetooth 4.0 Adapter Bluetooth Receiver for PC Laptop Desktop Keyboard Mouse Headset Speaker Smartphone Tablet Compatible with Windows 11/10/8.1/8/7/XP/Vista/XP : Electronics
BLE-USB
USB Class 2 Bluetooth 4.0 Dongle | GMYLE
CSR USB BT 4.0 Bluetooth Dongle CSR8510 – ElectroDragon
USB Bluetooth 4.0 Adapter for Desktop, Laptop, Mouse, Keyboard, Printer, Headset | eBay