large computer as a blue card that consumes almost nothing. I am very happy with this product. I chose this product for these pines that allow you to connect inputs or outputs on. I did not mid 5/5 product because, from my point of view it lacks a small leaflet that briefly explain the first start and how the product but we manage to find a good tutorial on looking good internet (unfortunately the best are in English!). I did not test the sound of my raspberry pi. my test condition: power supply: 5V, 0.7A; USB hub; keyboard mouse; wireless card; LCD; connected HDMI port.