Sparkle Power's SPI220LE 80 Plus FlexATX power supply has such a low power rating that it's invisible to the mainstream DIY retail market. Meant to be a part for commercial system builders, it has the distinction of being one of the "smallest" 80 Plus power supplies, which means it has 80% efficiency down to very low power levels; 44W to be precise. Could it be an alternative to the picoPSU for ultra low power, silent systems?
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