The Kama Bay AMP 2000 Rev. B Amplifier from Scythe comes with no less than 4 different inputs, two decibel meters that give the product a professional look, dials for modifying Bass/Treble settings and an USB port for charging our devices; the product can be installed in a spare 5.25'' bay or outside our computer, all bundle necessary for both types of installations being offered in the box.