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
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USB Bluetooth 4.0 Adapter - 10m Class 2 - Bluetooth & Telecom Adapters | StarTech.com
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Bluno Bee - Turn Arduino to Bluetooth 4.0 (BLE) Board - DFRobot
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Mini Usb Bluetooth V4.0 Adapter Dual Mode Wireless Dongle Csr 4.0 Bluetooth Adapter For Windows 7,8,10 Pc Computer Laptop - Bluetooth Adapters - AliExpress
AirTurn | USB Bluetooth V4.0 Adapter
Serial Bluetooth 4.0 BLE Module - iBeacon
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Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics
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USB Bluetooth 4.0 BLE Low Energy Dongle
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Amazon.com: SABRENT USB Bluetooth 4.0 Micro Adapter for PC [v4.0 Class 2 with Low Energy Technology] (BT UB40) : Electronics
LM1010-0972 - Lm Technologies - BLUETOOTH ADAPTER W/ANTENNA, V4.0, 3MBPS
CSR8645 Bluetooth V4.0 Amplifier Board Module APTX 2*5W for DIY Bluetooth Sound Box
Mini Usb Bluetooth V4.0 Adapter Dual Mode Wireless Dongle Csr 4.0 Bluetooth Adapter For Windows 7,8,10 Pc Computer Laptop - Bluetooth Adapters - AliExpress
AirTurn | USB Bluetooth V4.0 Adapter
Kinivo BTD-400 Bluetooth 4.0 Low Energy USB Adapter - Works With Windo
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
Long-Range USB Bluetooth 4.0 Micro Adapter – Sonnet Online Store
Orcaa Bluetooth CSR 4.0 Dongle Premium Plug and Play for PC Gaming Office Computers
Bluetooth Nano USB Dongle, 20mtr, CSR, Plug&Play
SMK-Link Bluetooth v4.0 LE+EDR Nano Dongle VP6495 B&H Photo Video
