TP-Link Bluetooth 4.0 Nano USB Adapter UB400 B&H Photo Video
Bluetooth Adapter for PC, Wireless Headset Headphone Adapter with Mic Bluetooth 4.0 Dongle USB Adapter USB Dongle - Walmart.com
Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bluno Mega 2560 - Arduino Mega 2560 Compatible - Bluetooth 4.0 - DFRobot
For Dongle Adapter Connector JVC KS-UBT1 Audio Dual Mode Bluetooth 4.0 Useful | eBay
USB Bluetooth Adapter PC 4.0, Wireless Bluetooth Receiver - Maxesla
Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters | StarTech.com
Wireless Bluetooth 4.0 Anti-lost Anti-Theft Alarm Device Tracker GPS Locator Key/Dog/Cat/Kids/Wallets Finder Tracer w/ Camera Remote Shutter & Recording for iPhone iPad & Android 4.3 or above White - Walmart.com
EDIMAX Technology N150 Wi-Fi & Bluetooth 4.0 USB EW-7611ULB B&H
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
Bluetooth® 4.0 Dual-Mode micro-USB Adapter | Shop Targus
Bluetooth 4.0 module card 60Y3303 for IBM Lenovo Thinkpad FRU60Y3303 – 2JB GmbH
iClever Himbox Bluetooth 4.0 Hands-Free Car Kit for Cars with 3.5mm Aux Input Jack, Multi-Point Access,3-Port USB Charger Black - Walmart.com
IOGEAR - GBU522 - Mini USB Dual-Mode Bluetooth 4.0 Transmitter
CSR USB BT 4.0 Bluetooth Dongle CSR8510 – ElectroDragon
Bluno Bee - Turn Arduino to Bluetooth 4.0 (BLE) Board - DFRobot
IOGEAR - GBU521 - | Bluetooth Adapter | Bluetooth Dongle | USB Bluetooth
Orico Wireless Usb Bluetooth-compatible 4.0 Adapter Usb Dongle Transmitter Receiver For Pc Windows Speaker Wireless Mouse - Bluetooth Adapters - AliExpress
Amazon.com: Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Compatible with Windows 11, 10, 8.x, 7, Classic Bluetooth, Gamepad, and Stereo Headset Compatible) : Electronics
UGREEN USB Wireless Bluetooth 4.0 Adapter
Serial Bluetooth 4.0 BLE Module - iBeacon
Keyestudio HM-10 Bluetooth-4.0 V3 Module Compatible with HC-06 Pins/supports Android & iOS system
Kinivo BTD-400 Bluetooth 4.0 Low Energy USB Adapter - Works With Windo
