Mini DC-DC Buck-Step Down Volt Converter 5V-12V to 3.3V 5V 7.3V 9V Fixed Output

Fixed output: 3.3v 2A / 5V 2A /7.3V 2A /9V 1.8V (defalut output 9v). We afford all cost if it's our fault. or Negative. We maintain the excellent service standards.

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