I'm typing on a Logitech K120 keyboard. The key clicks are annoying people in my vicinity.
Are there any decent quiet and wired USB keyboards that are not as 'clicky'?
The K120 I think, are sort of laptop-style (successor to the Ultra X Premium). They have a pretty high-pitch sound to them. Similar to MX blues, altohugh not as noisy.
Chicklet keyboards are usually quieter. Things like Logitech Illuminated Keyboard (K780, K800 now?). The Logitech PerfectStroke keyboards should be very quiet, if not the quietest (my Illuminated Keyboard certainly was the quietest I've used, except the space bar).
Although, they don't have the same feel as regular keyboards, and some are not suitable for gaming (Logitechs stupidly have key-ghosting issues on their non-gaming keyboards).
Romer-G (Logitech's own proprietary key mechanism) are slightly quieter than Cherry mechanicals, which IMO are rather noisy (whatever version you select, some more than others).
If you're looking for something cheap, a regular, good quality membrane keyboard will do just fine.