I use a Kinesis Advantage and while it is not split, it does have concave key wells which in my opinion is superior to the flat ones on ErgoDox. The middle sect

I use a Kinesis Advantage and while it is not split, it does have concave key wells which in my opinion is superior to the flat ones on ErgoDox. The middle section is large enough to fit a Magic Trackpad 2 and I have seen people mod their keyboard to place a wireless charger beneath.