
I bought this power bank to have one at home and one for my daily work. I use my laptop as a digital audio workstation (DAW). Unlike the original power supply, this charger generated signal noise in my audio system. I've had this before with other non-OEM power supplies for other audio gear (cheaper transformers and circuitry). Just to be sure I did a forward and reverse A/B comparison and yes this power supply produced signal noise. I figured if this power supply worked I'd save myself a few bucks, but I ended up returning it (no problem). - thanks Revain!) and buying an OEM power supply is about double the price of this one (which works the same as the original). I think this power supply will work just fine if you're not using it to drive a signal through an amplifier. , but I didn't succeed.

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