I am aware the new Magic Mouse 2 and Magic Trackpad 2 require Bluetooth 4.0. Many of us have 2011 or earlier Macs that can use OSX 10.11 but don't have Bluetooth 4.0. We only have Bluetooth 2.1 + EDR. SO I have two questions about this. 1. Can we buy a Bluetooth 4.0 adapter or similar for these new devices? And will this method only work for one device at once or can we use multiple of the new devices at once? If so what's the best way to go about this? 2. Can you use them wired though the lightning to USB cables that come with the devices? I thought I read somewhere that the data would be sent through the cable to the mac as well. I am sure someone out there would be able to let us know if this works. My iMac is a 2011 one. The lastest model with Bluetooth 2.1 + EDR unfortunately. I am sure others are in the same boat. Is there a way we can effectively use the new devices or is it just not worth the hassle to do so?