SMAKN&reg; Mini TA2024 Computer PC Digital Stereo Amplifier Board DC 12V/3A Power Audio Amp DIY Filter capacitor: 2 pieces 2200UF/16V Module chip:TA2024 Module Name: digital amplifier module Efficiency: &amp;gt;88% full power (RL = 8&Omega;) Power Supply: DC 12V, 3A or more (single power supply)