Synology Power Supply

I recently purchased this AC adapter to replace the faulty one that came with my Synology 918+, and I couldn’t be happier with the result. I was experiencing the blinking light issue, which I found out meant my original adapter was no longer working properly. After a bit of research, I decided to go with this adapter, and it solved the problem completely. The installation was straightforward, and once I plugged it in, the blinking light issue immediately disappeared. It’s been a couple of weeks now, and the adapter has been working perfectly with my Synology NAS without any issues. The device is powering on consistently, and I’ve had no problems since the replacement. If you're dealing with the blinking light issue and need a reliable replacement, I highly recommend this AC adapter. It worked perfectly for me, and it’s been a solid, trouble-free solution.

I went to access my Synology NAS and to my surprise it wasn't there. When I when I went to my network rack there were no lights on the NAS and the LED on power supply was off. I ordered this KFD replacement power supply hoping this would solve my problem. And it did!! I'm so glad it was not my NAS and just the PSU. I'm also very pleased the KFD replacement unit works well and has very similar specs to the original PGB PSU. If you need a power supply I highly recommend KFD as a replacement. Please see the picture comparing both of the PSUs side by side.

Nothing is worst than having your NAS die due to a faulty power adapter. I have a 4-bay Synology for several years now, and it is solid hardware. The first time the factory power adapter failed, it just shut down and didn't start, thus it was easy to diagnose. I got the power adapter replaced and it worked fine again. But recently the DSM tells me there's degradation on one of the disks (I only use NAS-rated hard drives). Then a second disk started reporting problems. I didn't realize it was the adapter that was starting to fail. I replaced the hard drives (at a huge expense, let me add), but the problem persisted. So I ordered two of these adapters, because I cannot afford down time. They last long and they aren't expensive considering their importance. After replacing the faulty adapter everything has been working well. Any future glitches, and I will just swap the power adapter with the spare I have sitting there waiting to save the day. It's been working great so far.

Worked initially, but failed within 6 months. Took out a drive when it failed. Would not purchase again.

While performing a large upload of media files to my Plex running on a DS920+, file transfer stopped overnight (it was around 400GB). I was unable to access the NAS through web interfaces, and a restart didn’t resolve the issue. After the restart, realized I have the fast blinking power light which could mean 3-4 different issues, from power to motherboard failure. Thankfully, this product was offered on Amazon, at a reasonable price and quick delivery. Just replaced the old power brick with this on, powered up and she lives another day. Reviving access to 38TB of TV shows on the DS920+ and access to another 5TB of shows on a connected DX517. Hopefully, this power supply lasts as long or longer than the original, around 4 years now. I also purchased a second to have on-hand to replace the original powering a DS918+ which has been running almost non-stop for 6+ years. Took care of my problem, and prevented more involved troubleshooting and repairs. Happy couch camper with the return of my Plex media.

Lasted 18 months - original lasted 36+ months - 2 stars and not 1 star because the safety kicked in when it died it made a " pop " sound and stop working. the day it did that it was causing power failures to the disk drives. recommend try a different brand

I found my QNAP TS-653d NAS not powered on. Short story I suspected a bad power supply (more details below). The original PS specifications stated the output as 12 volts and 10 amps. This PS is listed as 12 volts, 8.3 amps. This PS was available prime and with a quick delivery. I found another PS (https://www.amazon.com/dp/B00DUEBLDI) with the correct output spec but it was more expensive and going to take a week for delivery. I purchased this power supply to try to determine it was a power supply or something worse with the intention of purchasing the correct spec unit if it worked. I plugged it in, pushed the power button, and it started up. It seems the PS was the problem and this unit worked in a pinch to get it back running. I have ordered the unit with the correct specs so that I do not overpower this PS and cause it to fail too soon as well. In the mean time my NAS is back in service. More information about what my NAS was doing to help diagnose a possible PS issue. As stated above, I found the unit powered off. At first I thought it had just not been turned back on after we had some power outages over the past week. I have the system powered through a nice APC UPS so I did not initially suspect a power surge -- I just assumed the power was out long enough that the NAS shut down and did not restart. First I thought simple, just push the power. Nothing. No lights and no fan. Then I looked closer and observed when I would plug it in and when I initially pushed the power button the fans would start to spin, perhaps two rotations, then stop. Never any lights. I first tested the PS output with my multimeter. The v+ terminals each registered 12v so that seemed like it may be working. I resumed testing other components. During further testing I removed everything plugged into the NAS as well as removed the HDs. Same response. I removed and reseated the RAM. Same response. Tried combinations of the RAM modules in each slot, swapped slots, etc. Same response. Everything I did with the original PS resulted in no lights and the fans acting like they wanted to start but not start. At this point I figured I either had a bad PS or a bad motherboard (or some component on it). Bad motherboard would be a big fix and probably be just purchasing a replacement NAS. The PS would be a quick fix if it worked. Back to where I stated at the beginning, it was purchase this PS and get a quick delivery and quick answer or get the proper one but take a week for an answer. I did not want to wait a week to determine if it was a bad PS so I opted to get this one to try. Now that the PS fixed the problem, I have ordered the correct PS and I will keep this PS as a backup if when the other goes out.

This power supply worked well on my DS420j with 4x 16TB drives for a little over 2.5 years, then I started getting the dreaded "abnormal power failure" errors on one hard drive, then another, and it cascaded until system failure. Be aware that your mileage may vary based on many factors, but for me this power supply was a cheap and temporary fix for the original going bad. This is fully compatible on many Synology models, but might end up being a little underpowered at just over 8A. Now that this one has failed, I've upgraded to a 10A power supply that looks and feels a bit more robust, hoping for a longer service life, but time will tell. The 10A version is compatible with units that hold many more HDD's, so I have high hopes. This one works, but be aware of it's limitations and short longevity.

powers up and worked like original

Worked like a charm.

Compré esta fuente de poder para una Synology DS415play que no estaba en la lista para los productos Synology con los que era compatible. Afortunadamente, funcionó muy bien. Tal vez serìa bueno actualizar la lista de productos compatibles.

Compatible and works well

It works and came quickly. Nothing to complain.