It has been about two years since the release of the Leadex II line, and Super Flower has now decided that it is night time for its successor. Among others, Super Flower has vastly improved the performance of the 5VSB rail, making it much more efficient. It has also worked on the semi-passive operation, which now has two modes (0 and 1). However, with overall output noise nearly identical between the two, I didn’t notice any significant differences between the two modes of operation.
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https://www.techpowerup.com/review/super-flower-leadex-iii-850-w/