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Switching Split Power Supply ± 12V 500mA Split Supply : ID 2591 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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12V DC 500mA Power Supply 2.1mm DC Plug | Jaycar Electronics
12V 0.5A EU virtalähde hintaan 4,95 €
12V 500mA DC Power Supply AC Adapter with 3.5 mm Center Positive (+) Plug
AC-DC DC 12V 500mA Power Supply Converter Step Down Electronic Transformer Board Isolation Short Circuit Protection Module
Amazon.com : 12V DC 500MA Switching 100V-240V CCTV Camera Power Supply AC to DC Power Adapter : Home Security Systems : Electronics