In a treasure box, as I call the boxes full of old computer electrical parts, I have found a device marked HannStar MV-4 94v-0 0611 E89382. I'm intentionally linking you to google search so that you can see that it finds nothing at the moment.
The MAC address has been censored.
I can see promising USB pins on the PCB. This made me think the device can work via USB. However the number of colored wires exceeds that of USB - it was originally connected to mainboard of laptop.
The device has
MAC XXXXXXXXXXXX on the other side. I believe it's a Bluetooth or Wi-Fi transmitter - that would be very useful for Raspberry Pi.
I have tried to contact HannStarr but their website really sucks and their contact form does not work beyond capability of Firebug (which I usually use to repair broken pages). This was my message meant to them (in case you can send it):
Hello, I have somehow salvaged a nice piece of hardware made by Your company.
It might be a little old, but I'm very interested in using it (as an engineer).
Can I please ask you for any technical documentation you are allowed to share about it? It's marked HannStar MV-4 94v-0 0611 E89382. Here is an image of it: http://i.stack.imgur.com/xvhOr.jpg.
I will be very grateful, ****** ***** - *******@*****.**
PS: Making <input> field 300px high doesn't allow for multiple lines of text. Tell this your webmaster. He should, instead, use <textarea>