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Bluetooth Low Energy/IEEE® 802.15.4 Packet Sniffer USB Dongle for Kinetis® KW40Z/30Z/20Z MCUs | NXP Semiconductors
MakerSpot CC2640 Bluetooth Low Energy BLE 5.0 USB HID Dongle (Backward compatible with BLE 4.0 / 4.1 / 4.2) - MakerSpot
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Orico Usb Adapter Bluetooth-compatible 4.0 Dongle Music Sound Receiver Adapter Up To 20m Wireless Range For Windows Computer - Bluetooth Adapters - AliExpress
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USB Bluetooth 4.1 Adapter Dongle Receiver Wireless Audio Music Stereo TV PC MAC | eBay
Bluetooth Smart® Serial RS232 Adapter - Low Energy 4.1 BLE
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