Review on CanaKit Raspberry Supply Adapter Listed by Drew Cage

I bought this power supply because it needed to be filtered and "low noise" because I needed it for an audio application (Echo Dot connected to high-quality external speakers). It's definitely NOT low-noise: you can hear faint 60Hz overtones coming through the speakers (which, frankly, also indicates the Echo Dot's under-filtering). I spent a lot of time making sure the 60Hz hum wasn't coming from the 3.5mm cable itself. (The hum is greatly reduced but not eliminated when I use the USB power adapter that came with the tablet.) Disappointed with the poor quality of this power adapter and its lack of marketing specs.