Writers often keep odd hours and the constant click-clack of keys on a keyboard is likely to annoy any partner within earshot trying to catch some shuteye. Such sleep deprived housemates are likely to be thankful for the Thanko Silent Keyboard EX that cuts the noise down to a mere 44.5 dB, which is 16.5 dB quieter than your average keyboard and roughly the sound level of a quiet library.