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Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
AliExpress
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Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters | StarTech.com
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USB Bluetooth V4.0 3.0 Wireless Mini Adapter Dongle for PC Win 7 8 10 MZ XP VIST | eBay
Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy T - Sabrent
Kinivo BTD-400 Bluetooth 4.0 USB adapter - For Windows 8 / Windows 7 / Vista
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 | StarTech.com
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USB Bluetooth 4.0 EDR Playback Dongle for Win 10/8/7/ XP Notebook Laptop Desktop | eBay
TP-Link UB400 - Network adapter - USB 2.0 - Bluetooth 4.0 | Dell USA
