That's the old version, you want this: https://gaming.kinesis-ergo.com/edge/

Despite the gaming moniker, it's actually their best professional-grade keyboard, with better support for macros and backlighting.

There's a ~$30 add-on accessory to add tenting support in 5°, 10°, and 15° positions. Same as with the Freestyle Edge mentioned in the other comment, for the newer, gaming-focused keyboard. I find it to be the best part of having a split keyboard.