USB Bluetooth 4.0 adapter?

[vailr]

Any recommendations for a USB Bluetooth 4.0 adapter, that works under both: Windows 8 64-bit & Mac OSX Mountain Lion?
Something like one of these:
http://www.newegg.com/Product/Produc...9SIA1DS0HC9557
http://www.newegg.com/Product/Produc...82E16833340022
http://www.newegg.com/Product/Produc...9SIA0Y40E11237
http://www.newegg.com/Product/Produc...tem=75-983-008
And (for possible future needs): that works well with iPhone 5, Bluetooth speakers or headphones, in addition to: Bluetooth mice, keyboards, etc.
Thanks in advance.

 

[Zaap]

The last one of your links IOGEAR GBU521 is supposed to be the current best 3rd party bluetooth adapter for OSX Mountain Lion. Also works great for Windows 7 x64.

I don't know if there's any difference in the W6 version and non:
http://www.newegg.com/Product/Produc...82E16833139027

It's the non-W6 version I see reported as working perfectly for OSX.

I have the BT 2.1 version of the same dongle and it works perfectly for my wife's iPhones (4 and 5) as well as an Apple Magic Trackpad with my Hackintosh.

 

[vailr]

Thanks.
Note: IOGEAR's website says: The difference between the product model #GBU521 and the model #GBU521W6 is that the GBU521W6 comes with multi-language instructions.
http://www.iogear.com/product/GBU521W6/