The best thing about this one is that it features mechanical key switch. It uses Cherry MX Black, which is linear but requires more force.
other notable features/differences include:
Detachable number keypad. It can be attached to the left side.
Rotary wheel knob for sound level control. Nice.
A sliding rail for adjustable position of 6 programmable keys. Useful? am not sure. It's nice to have 6 extra programmable keys, but then it blocks 4 function keys. But you can take it off to be standalone.
Giant Enter ↵ key, but tiny ⌫ Backspace key, and \ is moved to top row, pressed by pinky. So, this keyboard won't be good for programers.
No dedicated multimedia keys or app launch key. This means, you'll have to “waste” on those programmable keys.
So, overall, this keyboard might be nice if you use it exclusively for gaming. It won't be good if you also do programing, or writing.
About the Cherry MX Black mechanical switch, i've tried it in stores, but didn't like it at all. But am not a dedicated gamer. I much prefer Cherry MX Brown, or Red. Possibly Blue too, which i haven't tried.
〔☛ Guide to Computer Keyboard Key Switch Mechanisms〕
video review of a similar model to Mech4 keyboard
Mech5 Model
The Mech5 model fixed the small backspace key problem.
amazon
Detachable number keypad. You can attach it to the right or left.
2 big wheel controls. Very nice. Wheel control for sound level are much better than buttons.
the Alt▤ MenuCtrl on the right side is more to the right than standard gaming keyboard positions. Note the Alt is under /, while all
Logitech Gaming Keyboards have it under between {,, .}
