Both of those links you just posted show uniform caps (like every other Hi-Tek / Stackpole board I’ve ever seen pictures of), not sculpted.
The uniformity is clearest in this picture:
![](http://deskthority.net/w/images/9/9a/PerkinElmer3700kb-side_view.jpg)
They look like they should be the same as on the other boards.
These might still be Hi-Tek switches, I wouldn’t rule it out, but the keycap legends are also obviously different. Compare:
![](http://i.imgur.com/EWxNf3q.jpg)
![](http://deskthority.net/w/images/1/19/PerkinElmer3700kb-top_view.jpg)
By the way, for the sake of anyone who buys this, I hope it’s not Hi-Tek / Stackpole switches, as those are pretty unpleasant to type on IMO.
My guess is Honeywell/Micro Switch Hall Effect switches, but that’s just a guess.