If you're looking for a silent keyboard, which will not disturb your roommate at night when typing in the Thanko Silent Keyboard EX may be the perfect answer for you. The price for 4980 yen ($ 52), keyboard produces only 44.5 dB of noise, which is a 16.5 dB quieter than normal keyboard. You can connect Thanko's Silent Keyboard with EX EX Silent Mouse. The keyboard measures 445mm x 146mm x 37mm.