I have an Apple keyboard with numeric pad that I connect, via USB, to my Macbook and have been looking for a new means of screen navigation because the trackpad on the Macbook is on the fritz. I went to the Apple website to look for a new mouse, preferably a trackpad, and see that the $70 Apple track pad accessory connects via Blutooth? I thought Ive seen on the internet pictures of desktop set-ups where people have the Apple keyboard and trackpad connected together. Am I mistaken or is blutooth the only way to connect the trackpad to my set-up?