Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Adafruit Industries, Unique & fun DIY electronics and kits Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 - Add Bluetooth capability to your computer super fast with a USB BT 4.0 adapter. This adapter is backwards compatible with v2.1 and earlier, but also supports the latest v4.0/Bluetooth Low Energy. Inside lies a CSR8510 Bluetooth USB host.We've used this with great success on a Windows 7 computer, installing as
Add Bluetooth capability to your computer super fast with a USB BT 4.0 adapter. This adapter is backwards compatible with v2.1 and earlier, but also supports the latest v4.0/Bluetooth Low Energy. Inside lies a CSR8510 Bluetooth USB host.We've used this with great success on a Windows 7 computer, installing as a 'generic' Bluetooth device, but we expect it to work just fine with any modern computer as this chipset is very common. So far we've tested it to communicate with Bluetooth data modules only.Revision note: As of Friday, August 28th, 2015 these now have unique MAC addresses! That's great because now you don't have to worry about using two or more of them at once, handy for people turning these into beacons.Drivers for CSR Bluetooth modules are built into Windows XP/7/8/10 so you do not need to install any software or download anything: other bluetooth drivers or 'stacks' such as BlueSoleil are not as good as the Windows stack and will cause problems. Just plug it in and let windows auto-install the BT driver, it may take a few minutes! For Linux, use Bluez which works great, our Pi tutorial will be similar to your favorite distro

Bluetooth 4.0 USB Module (v2.1 Back-Compatible) : ID 1327 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Mini USB WiFi Module - RTL8188eu - 802.11b/g/n : ID 2810 : $11.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Add Bluetooth capability to your computer super fast with a USB BT 4.0 adapter. This adapter is backwards compatible with v2.1 and earlier, but also supports the latest v4.0/Bluetooth Low Energy. Inside lies a CSR8510 Bluetooth USB host.

adafruit-Bluetooth 4.0 USB Module (v2.1 Back-Compatible) ADA1327

Bluetooth 4.0 USB Dongle Adapter - Maxesla Wireless Bluetooth Transmitter Receiver for Windows 10/8 / 7 / Vista/XP Laptop PC for Bluetooth Speaker, Headset, Keyboard, Mouse, Game Controller Black : Electronics

Wireless, Bluetooth Products Category on Adafruit Industries

Wireless, Bluetooth Products Category on Adafruit Industries

Combination WiFi + Bluetooth 4.0 USB Adapter : ID 4827 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits

Panda Bluetooth 4.0 USB Nano Adapter - Windows XP/Vista/7/8/8.1/10/11, Mint, Ubuntu, Fedora, openSUSE, Lubuntu, Zorin, BackTrack5 R3, Kali Linux, Raspbrian Wheezy and OpenELEC : Electronics

StarTech USBBT1EDR4 Mini USB Bluetooth 4.0 Adapter - 50m / 165 ft. Class 1 EDR Wireless Dongle - Mini Bluetooth Dongle Bluetooth Smart Ready LE+EDR

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

adafruit-Combination WiFi + Bluetooth 4.0 USB Adapter ADA4827