This page is a gallery of Logitech non-gaming keyboards.
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Logitech K120 Keyboard
This is Logitech's cheapest keyboard.
Notice that Logitech uses these symbols for the arrow keys: ◀ ▶ ▲ ▼. However, the up/down triangles are also used for Page Up/Page Down keys.
Also interesting, is that it uses |◀ and ▶| for Home End keys.
Logitech Wireless Solar Keyboard K750
Logitech created a solar powered keyboard. New in 2011.
No more hassle with batteries.
Logitech Illuminated Ultrathin Keyboard
This is one rectilinear flatness. Notice, instead of multimedia buttons and app launch buttons, now they are merged into the function keys. So, now to play your music, instead of pressing one button, now you have to press 2 keys: Fn+F11.
Logitech Wireless Desktop MK320 Keyboard
Logitech Wireless Desktop MK710 (keyboard and mouse)
Getting fancy. But for a pro typist, this is a quicker road to RSI than the $10 ones.
Logitech Wireless Keyboard K250
I think all these are bad. You can also checkout similar ones:
But, i would just recommend the Logitech G710+ Keyboard and be done with shopping.
If you have a question, put $5 at patreon and message me.