I'm using a good old logitech for work. It's big. It's clunky. It's got a ps/2 connector. It's not split. It's the only keyboard that never made my wrists hurt

I'm using a good old logitech for work. It's big. It's clunky. It's got a ps/2 connector. It's not split. It's the only keyboard that never made my wrists hurt over prolonged use and I've been using it since 2006 along with microsoft mouse. I think overall keyboard size/key size and spacing matters more than splitting the keyboard in two. I do however second the thought that keyboard (and ergonomics in general - external monitors set at correct height, good mouse, chair and table at good height, etc.) is not something you should ignore if you plan on keeping working with computers.