The 3G4G Blog: Different flavours of Bluetooth: 4.0, 4.1, Low Energy, Smart, Smart Ready...
IOGEAR - GBU521 - | Bluetooth Adapter | Bluetooth Dongle | USB Bluetooth
Bluetooth 4.0 module card 60Y3303 for IBM Lenovo Thinkpad FRU60Y3303 – 2JB GmbH
Bluetooth 4.0 Scanner - Apps on Google Play
Baseus USB Bluetooth Adapter USB Dongle For Computer PC Mouse Keyboard Aux Bluetooth 4.0 4.2 Speaker Music Receiver Transmitter - AliExpress
Mini USB Bluetooth 4.0 Dongle - 50m - Bluetooth & Telecom Adapters | StarTech.com
Bluetooth 4.0: What is it, and does it matter? - CNET
USB Bluetooth 4.0 BLE Low Energy Dongle
USB Class 2 Bluetooth 4.0 Dongle | GMYLE
USB Bluetooth 4.0 Adapter - 10m Class 2 - Bluetooth & Telecom Adapters | StarTech.com
Mini Bluetooth 4.0 (Class 1) USB Adapter | Eaton
Long-Range USB Bluetooth 4.0 Micro Adapter – Sonnet Online Store
Dual Mode Bluetooth 4.0 USB Dongle Adapter Connector For JVC KS-UBT1 Car Audio - Walmart.com
Updated] The Difference Between Bluetooth 3.0, 4.0, 4.1, 4.2, & 5.0 Explained - Major HiFi
Amazon.com: Kinivo USB Bluetooth Adapter for PC BTD400 (Bluetooth 4.0 Dongle Receiver, Low Energy) - Compatible with Windows 11/10/8.1/8/7, Raspberry Pi, Linux, MacOS, Laptop & Headphones : Electronics
Serial Bluetooth 4.0 BLE Module - iBeacon
Csr8510 Bluetooth 4.0 Dongle Csr 4.0 Adapter Mini Usb Bluetooth Adapter Transmitter For Windows Xp/vista/7/8/10 - Bluetooth Adapters - AliExpress
Amazon.com: USB Bluetooth Dongle, QGOO Bluetooth 4.0 Adapter Bluetooth Receiver for PC Laptop Desktop Keyboard Mouse Headset Speaker Smartphone Tablet Compatible with Windows 11/10/8.1/8/7/XP/Vista/XP : Electronics
Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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
USB Bluetooth 4.0 Adapter - Power Music Hardware Store
For Dongle Adapter Connector JVC KS-UBT1 Audio Dual Mode Bluetooth 4.0 Useful | eBay