Any other keyboard I've ever tried hurts my wrists, arm, and back, and causes me pain except the "Microsoft Natural Ergonomic Keyboard 4000". However they were discontinued years ago. :( I've been buying up used ones and learning how to disassemble and repair the ones I have the best I can, but my skills are limited.
If anyone has any (unopened) ones or knows of good replacements or how to make a new replacement (with same layout). I'd be incredibly grateful.
Most alternatives don't really have the wrist/angle support which is the #1. Then the arrow keys/home/pgup pgdn keys is next most important, and lastly the numpad and F1-F12 row keys. I don't care about special top row buttons or any of the 'special' keys on it.
Also, before people mention it, the Arisu or Feker Alice layout keyboards is nothing at all like the same wrist/angle support, it's basically just a split keyboard. :/ Most suggestions have missed the whole point of wrist/angle support being the issue.
I don't mind it being mechanical or anything so long as it's the basically the same layout/angle as the Microsoft ergo 4000. The replacement 'Microsoft ergonomic keyboard' non 4000 is 'okayish' but not as good as 4000. Other than those 2, I've never found one even remotely close to my needs. Thanks! <3