When comparing Unicomp Ultra Classic White vs Leopold FC660C, the Slant community recommends Leopold FC660C for most people. In the question“What are the best keyboards for programming?” Leopold FC660C is ranked 9th while Unicomp Ultra Classic White is ranked 17th. The most important reason people chose Leopold FC660C is:
Topre switches are a high end switch which typically cost a hefty premium. They have mechanical components protected underneath a rubber dome which makes them more durable.
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Pros
Pro Similar feel to the Model M
The Unicomp Ultra Classic White uses the same buckling spring keys as the famous IBM model M keyboard.
Pro Satisfying tactile feel
In terms of tactile feel, this keyboard is very satisfying and communicative. There are never doubts on whether the switch registered or not.
Pro Retro look
It has a somewhat retro look, since it looks a bit like an Amiga.
Pro More comfortable for big hands
Because it has more space between keys than a modern keyboard.
Pro Topre switches at a good price
Topre switches are a high end switch which typically cost a hefty premium. They have mechanical components protected underneath a rubber dome which makes them more durable.
Pro Solid construction
The Leopold FC660C is a solid and well-build mechanical keyboard. In fact, it's heavier than the HHKB (Happy Hacking Keyboard).
Pro Topre switches are plate mounted
This board's keys don't feel bouncy thanks to it's topre switch design. Since the torpe switches are mounted directly on the plate, the board feels much stiffer overall.
Pro Compact and portable footprint
If you love your keyboard enough to want to use it everywhere, it should be portable, especially if it's as expensive as this one is. The FC660C is very compact and easy to carry around.
Cons
Con It's heavy
This is a heavy keyboard, well over three pounds.
Con Heavy action
You have to press down harder than with modern keyboards.
Con Can suffer from squeeky "plastic on plastic" rubbing with the case
Con Very expensive
Con Non standard key sizes
Non standard key sizes means your aftermarket keycap options are limited to non-modifiers. This issue also exists with virtually every other keyboard that utilises the Topre switch.