Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Bluetooth 4.0 Adapter for Desktop, Laptop, Mouse, Keyboard, Printer, Headset | eBay
USB Bluetooth 4.0 Receiver Adapter – Ugreen
Mini USB Bluetooth 4.0 Dongle Adapter, EEEkit Wireless Dongle Receiver for Bluetooth Headphones/ Headset/ Speakers/ Keyboard/ Mouse/ Printer, Wireless Transfer Adapter for PC Laptop Windows 10/8.1/8/7 - Walmart.com
Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters
StarTech USBBT1EDR4 Mini USB Bluetooth 4.0 Adapter - 50m / 165 ft. Class 1 EDR Wireless Dongle - Mini Bluetooth Dongle Bluetooth Smart Ready LE+EDR - Newegg.com
CSR Bluetooth 4.0 USB Adapter Dongle
Amazon.com: ideapro USB Bluetooth Adapter, 4.0 Dongle Micro Bluetooth Transmitter, Transfer for Laptop Windows 10 Raspberry Pi, Linux, Stereo Headset, Wireless Keyboard Headphone : Electronics
High Performance Bluetooth 4.0 Adapter, Wireless Bluetooth CSR 4.0 Dongle Adapter Compatible with Windows 10, 8.1 / 8, 7, Vista, XP, 32/64 Bit and Classic Bluetooth, Stereo Headset Compatible - Newegg.com
USB Bluetooth V4.0 CSR Wireless Mini Dongle Adapter For Win7 8 10 PC Laptop – emaxsave
USB Bluetooth 4.0 BLE Low Energy Dongle
Wireless USB Bluetooth 4.0 Adapter Bluetooth Dongle Transmitter Receiver - China Bluetooth USB Dongle and Dongle price | Made-in-China.com
Mini Bluetooth CSR 4.0 USB 2.0 CSR4.0 Dongle Adapter For Win 8 7 XP Laptop PC | eBay
StarTech.com Mini USB Bluetooth 4.0 Adapter - Office Depot
USB Bluetooth 4.0 Receiver Adapter – Ugreen
Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters
Penguin USB Bluetooth 4.0 Micro Adapter (TPE-USBBLUV4) | ThinkPenguin.com
Bluetooth Optical Audio Receiver w Power Adapter | 33ft Range
Sitecom — CN-524 — Bluetooth 4.0 Adapter
Amazon.com: UGREEN USB Bluetooth 4.0 Adapter Nano USB Wireless Dongle Plug and Play for Win 10 8 Support Win 7 Vista Laptop Desktop to Bluetooth Headphone Speaker Keyboard Mouse Game Controller : Electronics
Vention Usb Bluetooth Adapter 4.0 Wireless Bluetooth Dongle Adapter For Music Audio Receiver Transmitter For Pc Speaker Mouse - Usb Receiver Adapter - AliExpress
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
Hideez USB Bluetooth Adapter for macOS & Windows 10/11
