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Forum Discussion
Waynec2
Sep 12, 2026Aspirant
RN-524X Power Supply Part Suppliers
My RN-524x AC Adapter doesn't provide 12V to the NAS. The adapter indicates P/N:332-10934-01, Model:2ABU120F, Input: 100-240V ~50/60Hz, 2.0A MAX, Output + 12V--10A. The pin diagram shows Pin-1 12V,...
- Sep 13, 2026
When looking at power supplies with the 4-pin connector, be aware that not all use the same pin-out. All Synology models that use a 4-pin power supply have the same pin-out, and you may have better luck searching for that. There are several models available on Amazon, though not all are 10A.
StephenB obviously intended to say to check that it's rated at at least 10A, not 2A. Be especially warry if the seller's photos "conveniently" hide the power rating in the photos.
Waynec2
Sep 14, 2026Aspirant
The 25V reading is under no load. My RN-524x was shutdown gracefully before the NAS was moved to another location. However, the NAS could not be turned on after plugging in an outlet and turned on. I reset the NAS, but the boot menu was not shown up. I then disconnect the power connector to the unit and measuring the voltage at the pins. It was 25V at both pairs of pin. I determined that the PSU failed and decided to purchase a new PSU. I hope that the mother board has a surge protection, so that it wouldn't be damaged in case of PSU failure. But, I am not sure.
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