Yes, it works with Linux, KDE 4 and BlueZ. However, the device was not recognized by my Slackware 14.2 Linux. I had to edit the driver source file to add the device ID. I edited the file /usr/src/linux/drivers/bluetooth/btusb.cAfter these two lines /* Broadcom BCM20702A0 */ { USB_DEVICE(0x413c, 0x8197) },I added this line for the device ID of the Pluggable USB adapter. { USB_DEVICE(0x0a5c, 0x21e8) },The change might not be required for newer Linux kernels. Use this patch at your own risk!

Can multiple keyboards be paired with this adapter? Or do I have to purchase multiple adapters - 1 for each individual keyboard?

This adapter handles multiple devices, up to seven. When you say multiple keyboards, I'm presuming you mean different keyboards for different computers. Either way, to clarify, you need one adapter for each computer, which will then allow the computer to which it is connected handle up to seven devices. This device has worked perfectly for me. I've connected it to Bluetooth speakers, keyboards, headphones, and more.

Works with Raspberry pi?

MANUFACTURER ANSWER: Yes, but can vary with Linux distro. With latest version of Raspian, you should be fine. We have details here: http://plugable.com/2013/12/10/using-the-plugable-usb-bt4le-bluetooth-adapter-with-the-raspberry-pi Thanks for asking!

Can I use this to connect to these headphones? http://amzn.to/2ktLr6u

MANUFACTURER COMMENT: It should work. For the most part issues with audio devices are primarily isolated to Windows 7 and below, and Linux systems (usually additional packages need to be installed or the kernel needs to be updated). If you are using Windows 8 and above, the headphones should work well. Most audio devices still work without issue in Windows 7, mostly issues are with Bose devices and with devices that utilize Bluetooth Low Energy for a mobile companion app. If you are using an older version of Windows or if you are using Linux and there are problems, we can help. Please contact us at support@plugable.com if you encounter problems.

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Plugable USB-BT4LE USB Bluetooth 4.0 Low Energy Micro Adapter

Plugable USB-BT4LE USB Bluetooth 4.0 Low Energy Micro Adapter

Product ID: 257634987

Details

Brand
Plugable
Colour
Black
Compatible devices
PC
Item dimensions L x W x H
16 x 15.3 x 2
Specific uses for product
personal

💻Compatible with Windows & Linux

📶Bluetooth 4.0 Low Energy tech

🔌USB 2.0 Type A interface

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KD 8.75

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Description

🔗 Unlock effortless wireless freedom—your PC’s Bluetooth upgrade awaits!

PLUG PLAY SIMPLICITY - Automatic installation on Windows 10 and easy setup on older Windows versions with included Broadcom stack.
CROSS PLATFORM VERSATILITY - Supports a wide range of Windows versions plus Linux distros like Ubuntu and Raspbian for Raspberry Pi.
ULTRA COMPACT TRAVEL READY - Leave it plugged in—its tiny form factor fits discreetly on any laptop or desktop setup.
ENERGY EFFICIENT BLUETOOTH 4 0 - Enjoy low power consumption without sacrificing reliable wireless performance.
SEAMLESS MULTI DEVICE CONNECTIVITY - Effortlessly pair speakers, headphones, keyboards, and mice with your PC or Raspberry Pi.

The Plugable USB-BT4LE is a compact USB 2.0 Bluetooth 4.0 Low Energy adapter designed to bring seamless wireless connectivity to Windows (7 through 10) and Linux devices. It supports a broad range of peripherals including audio devices and input hardware, with easy plug-and-play installation on modern systems and included drivers for older Windows versions. Its ultra-small design makes it ideal for on-the-go professionals seeking reliable, energy-efficient Bluetooth performance without bulky dongles.

Specifications

ASIN	B009ZIILLI
Best Sellers Rank	#123,938 in Computers ( See Top 100 in Computers ) #312 in Bluetooth Network Adapters
Brand	Plugable
Built-In Media	Network adapter
Color	Black
Compatible Devices	PC
Customer Reviews	4.4 4.4 out of 5 stars (11,090)
Global Trade Identification Number	00649241921943
Item Dimensions	16 x 15.3 x 2 centimeters
Item Type Name	Plugable - Network Adapter - USB 2.0
Item Weight	0.1 Ounces
Manufacturer	Plugable
Mfr Part Number	USB-BT4LE
Model Number	USB-BT4LE
Number of Items	1
Package Quantity	1
Power Plug Type	Type G
Specific Uses For Product	personal
UPC	649241921943
Unit Count	1 Count

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