TAIFU 4-Pin 12V 8.33A - 9A Power Adapter for Synology Disk Station 4-Bay DS410 DS410j DS411 DS411J DS412 DS412 + DS416 DS418 DS918+ DS923+ DiskStation Network Storage NAS Server 12V DC Power Supply

Had my original Synology power adapter fail after a few years of use, so decided to give this one a try. It’s significantly cheaper than the Synology branded adapter, but so far it seems to work great on my DS918+. Time will tell whether it lasts longer than the original, but definitely no fitment issues and no performance issues, so I’m a happy customer.

Synology NAS would not boot up after a very massive power outage with power surges even though it was on an ATP UPS. Blue light on the front just blinked. Docs were marginal/useless. Online blogs indicated the most likely culprit was the power brick and this was a low risk experiment. A replacement from synology was significantly more expensive. Replaced original power brick with this and the NAS came right up. Very relieved. Six stars relative to the alternatives.

The original PSU with my DS918+ died. It was connected, along with most of my networking equipment and server to an uninterruptible PSU. It appeared to short-circuit, because the UPS entered a fault state and shut down. With everything disconnected the UPS restarted fine, and everything but the DS918+ worked.Looked at different options on Amazon as replacements. What looks like the "official" replacement PSU at $60 is just ridiculous. This one is much more reasonable.It took longer than it should to be delivered - got "lost" in delivery, then "found" again a day later. While waiting, I snipped off the cable from the faulty UPS, and connected it to my bench power supply.(It's a coaxial cable, outer is negative, inner is positive, for anyone needing to know).This arrived a couple of days ago, and seems to be working just fine.

failed after 2 years.over this last weekend, my snylogy starts complaining about disk power resets. eventually all the drives were resetting while it was online.looks like it's ability to sustain the current draw is a problem. voltage is drop during busy times while the sinology is attempting to operate.now can't even power on disk 1 and 2 (while disk 3/4 power up). the drives are in a power cycle loop. you can hear them start to spin up, then down. and 10-20 seconds later, retry. almost thought I had a double disk failure.turns out replacing THIS power supply with an official Synology power supply fixed the issue.BEWARE - if your data is important, always back it up somewhere regardless. but also avoid this power supply for the needless restore from backups when it eventually can't handle the current draw.

Well, the other morning I woke up to over 800 email notifications from my 6 year old Synology DS-918+, each one stating "abnormal power" on each different drive. The final E-Mail was that Storage Pool 1 was crashed. And here I thought having a one drive fault tolerance would be good enough to protect 30 years worth of documents, photos, music, and movies. If one fails then I'll just throw a new drive in, rebuild the array, and carry on. How wrong I was.It wasn't until I actually started think about what was actually irreplaceably important out of all that that I started freaking out and had an anxiety/panic attack last night.And then this power brick showed up today.My NAS is currently powered up, accessible, and copying all of the important stuff to both Storage Pool 2 on the DX517 Expansion module as well as to a standalone SATA drive plugged into a different system that I'll store elsewhere.One drive is "crashed" and in read-only mode. Fine, fine. I'll take it out, format it in a different system, replace it, and rebuild the array. The other one has a "System Partition Failed". Ok on that one too...that's a future problem to resolve. All drives report Healthy, so that's another plus...it's just the file system that has a problem.So...this purchase was worth every single penny and saved my sanity. I'm not sure what I'm going to do with all of the stock in Tums that I just purchased though. :DI've also got a new-open-box DS-920+ on the way. I'll throw 4 of my old 8TB drives in it, copy my data to it as well, plop it over at a friend's house, and figure out how to do remote syncing.This will not happen again!

worked 2 years and gave up

About 4 years ago, in 2020, I bought a DS420+ to replace my aging 2-bay Synology NAS. One day, I found that it was powered off and I couldn't power it on.In my attempt to troubleshoot it, I decided to give a replacement power supply a shot. This power supply was able to power it on, indicating that the original Synology branded power supply had gone bad after 4 years of flawless operation.If you run into a similar situation where you need a replacement power supply for your Synology NAS, look no further. This appears to be a quality product that works just like the original Synology power supply.

It's works! using this plug for my Synology Nas. only been a couple months so far. So will see how long this plug last. For now, I will give it 5 stars. It I can get 2 years of use out of it only then I will recommend it