CWT 12V 10A (120W) AC Adapter with 4 Pin Output Plug. Suitable For QNAP TS-410, TS-412 Turbo, Synology DiskStation CS407, DS409, DS409+, DS410, DS410J, DS411+II, DS412, DS413, DS916, DS918, + More NAS

Ordered this as a replacement for the OEM power supply that shipped with a Synology DS412+ that proved unable to completely power on the NAS unit. The OEM unit still works to some extent, however it appears unable to provide the burst power required to start the NAS, I'm unsure if the 5v or the 12v rail was faulty as I never got around to testing it. I just simply wanted to get the NAS unit back online and check that the SHR disc array was still ok.This replacement power supply is heavier and larger than the original OEM supply, but is pin and voltage compatible and was a straight swap. Powering on the NAS with the new supply plugged in resulted in the more usual power on lights, disk check lights and eventual beep when the NAS has completed its initialisation checks. Approximately 4-5 mins after switch on, the NAS was up and running and available on the network again like it had never been offline.If you find yourself with a Synology NAS that won't power up fully or appears to start and then switch off, check the OEM power supply that comes with your Synology NAS. 9 times out of 10, it's a good bet that replacing the power supply will resolve any power-on or stability issues you might be experiencing.

Arrived as promised, checked polarities and plugged into the 918 plus. Up and running straight away. No issues whatsoever

Product arrived swiftly and worked first time. I thought it was cheeky not to include a 50p kettle lead in a relatively expensive power source though.

worked with my TS419p no problem

So far so good, the NAS (918+) came back to life as soon as I plugged it in. Will update the review if any issues arise.

Exactly as described!Needed an urgent replacement for a failed power brick for a Synology DS918+, ordered this unit.It arrived next day, worked with no hassle, so far, 1 day in, no issues.

After receiving the email from synology that my device was offline I thought my internet went down. After a day with no email my synology stating it was back online I went to check on it to find out that the NAS was not powered. It is an old NAS with a lot of important data so needed to have it back on….checked on synology website and they wanted £80 for it. Decided to get this one. Fits properly and the most importantly the NAS was powered again. It’s been few weeks now and still going strong. Recommended!

The headline says it all: This PSU brought my TS410 back from the dead for a fraction of the cost of an official Qnap PSU. Delivered quickly and built to a quality level higher than the price would lead you to believe.