Question 1

linux

Accepted Answer

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!

Question 2

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

Accepted Answer

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.

Question 3

Works with Raspberry pi?

Accepted Answer

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!

Question 4

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

Accepted Answer

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.

ASIN	B009ZIILLI
Best Sellers Rank	#53 in Bluetooth Network Adapters
Brand	Plugable
Built-In Media	Network adapter
Color	Black
Compatible Devices	Windows 11, 10, 8, and 7
Customer Reviews	4.4 out of 5 stars 11,525 Reviews
Global Trade Identification Number	00649241921943
Item Dimensions	6.3 x 6.02 x 0.79 inches
Item Type Name	Plugable - Network Adapter - USB 2.0
Item Weight	0.1 Ounces
Item dimensions L x W x H	6.3 x 6.02 x 0.79 inches
Manufacturer	Plugable
Mfr Part Number	USB-BT4LE
Model Number	USB-BT4LE
Number of Items	1
Package Quantity	1
Specific Uses For Product	personal
UPC	649241921943
Unit Count	1.0 Count
Warranty Description	no warranty

Plugable USB Bluetooth 4.0 Low Energy Micro Adapter (Compatible with Windows 11, 10, 8.x, 7, Classic Bluetooth, Gamepad, and Stereo Headset Compatible)

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