3A 4CH 3.3V 5V 12V ADJ DC DC Step-Down Buck Converter Module LM2596 AMS1117 7805

3A 4CH 3.3V 5V 12V ADJ DC DC Step-Down Buck Converter Module LM2596 AMS1117 7805
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sku: 1005005739280189
$9.97
Shipping from: China
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