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expiredt588t588 posted Mar 28, 2026 01:18 PM
expiredt588t588 posted Mar 28, 2026 01:18 PM

Synology DiskStation 4-Bay NAS Server (Diskless): DS925+ $512, DS425+

+ Free S&H

$416

$520

20% off
B&H Photo Video
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Deal Details
B&H Photo Video has Synology DS425+ DiskStation 4-Bay NAS Server (Diskless) for $415.99. Shipping is free.

Amazon has Synology DS925+ DiskStation 4-Bay NAS Server (Diskless) for $511.99. Shipping is free.
  • Note: Estimated delivery dates may vary by location.
Thanks to Community Member t588t588 for finding this deal.

DS425+ Specs:
  • 4x 3.5/2.5" Bays
  • 2x M.2 2280 Slots
  • 2.0 GHz Intel Celeron J4125 4-Core CPU
  • 2GB of Onboard DDR4 RAM
  • 1x 2.5GbE
  • 1x 1GbE
  • 2x USB-A 3.2 Gen 1 Ports
  • RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD
  • Sequential Reads up to 278 MB/s
  • Sequential Writes up to 281 MB/s
  • Hardware Encryption
  • Synology DiskStation Manager OS
DS925+ Specs:
  • 4x 3.5/2.5" Bays
  • 2x M.2 2280 Slots
  • 2.2 GHz AMD Ryzen V1500B Quad-Core
  • 4GB of DDR4 RAM
  • 2x 2.5 Gigabit Ethernet Ports
  • 2x USB-A 3.2 Gen 1
  • 1x USB-C
  • RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD
  • Sequential Reads up to 522 MB/s
  • Sequential Writes up to 565 MB/s
  • Hardware Encryption Engine
  • Synology DiskStation Manager OS

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Our research indicates that DS425+ is $70 less (14% savings) than the next best available price from a reputable merchant with prices starting from $485.99 at the time of this post.
  • About this product:
    • 3-year warranty
    • DS425+: Rating of 4/5 from 50+ Amazon customer ratings.
  • About this store:
No longer available:
  • Amazon has Synology DS425+ DiskStation 4-Bay NAS Server (Diskless) for $415.99Shipping is free.

Original Post

Written by t588t588
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
B&H Photo Video has Synology DS425+ DiskStation 4-Bay NAS Server (Diskless) for $415.99. Shipping is free.

Amazon has Synology DS925+ DiskStation 4-Bay NAS Server (Diskless) for $511.99. Shipping is free.
  • Note: Estimated delivery dates may vary by location.
Thanks to Community Member t588t588 for finding this deal.

DS425+ Specs:
  • 4x 3.5/2.5" Bays
  • 2x M.2 2280 Slots
  • 2.0 GHz Intel Celeron J4125 4-Core CPU
  • 2GB of Onboard DDR4 RAM
  • 1x 2.5GbE
  • 1x 1GbE
  • 2x USB-A 3.2 Gen 1 Ports
  • RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD
  • Sequential Reads up to 278 MB/s
  • Sequential Writes up to 281 MB/s
  • Hardware Encryption
  • Synology DiskStation Manager OS
DS925+ Specs:
  • 4x 3.5/2.5" Bays
  • 2x M.2 2280 Slots
  • 2.2 GHz AMD Ryzen V1500B Quad-Core
  • 4GB of DDR4 RAM
  • 2x 2.5 Gigabit Ethernet Ports
  • 2x USB-A 3.2 Gen 1
  • 1x USB-C
  • RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD
  • Sequential Reads up to 522 MB/s
  • Sequential Writes up to 565 MB/s
  • Hardware Encryption Engine
  • Synology DiskStation Manager OS

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Our research indicates that DS425+ is $70 less (14% savings) than the next best available price from a reputable merchant with prices starting from $485.99 at the time of this post.
  • About this product:
    • 3-year warranty
    • DS425+: Rating of 4/5 from 50+ Amazon customer ratings.
  • About this store:
No longer available:
  • Amazon has Synology DS425+ DiskStation 4-Bay NAS Server (Diskless) for $415.99Shipping is free.

Original Post

Written by t588t588

Community Voting

Deal Score
+53
Good Deal
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Top Comments

Chewieez
70 Posts
18 Reputation
Small note: the DS925+ from B&H Photo is not free shipping, it's $512 + ~$12 for shipping.
Dllemm
1049 Posts
80 Reputation
Ugreen is China, Synology is Taiwan. Something to consider if you're concerned with the privacy of your data.
BrainDoc
3089 Posts
952 Reputation
I have both Synology and Ugreen. If you're going to use the included OS, Synology is the better option. If you're willing to install a different system like TrueNAS or unRAID, go with some other option than Synology. My ugreen unit has been great.

86 Comments

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Mar 28, 2026 09:26 PM
2,196 Posts
Joined May 2007

This comment has been rated as unhelpful by Slickdeals users.

Mar 28, 2026 09:39 PM
244 Posts
Joined Feb 2006
ejl10Mar 28, 2026 09:39 PM
244 Posts
Quote from edgarwong :
Love my ugreen. Not using thei software at all, I'm running Proxmox with LXC containers for app my apps and file serving. Working great and luckily got it a year ago when 32gb of ram was under $100
One of the ethernet ports on my Synology DS920+ stopped working reliably a couple weeks ago. Very awkward problem to diagnose! Fortunately I only use one. But it got me thinking… If this thing goes, I'd love to consider the Ugreen alternative. Is there any reasonably easy way to migrate my disks and their data to the new NAS (SHR array)?
Last edited by ejl10 March 28, 2026 at 04:31 PM.
Mar 28, 2026 09:57 PM
289 Posts
Joined Jul 2007
mezioMar 28, 2026 09:57 PM
289 Posts

Our community has rated this post as helpful. If you agree, why not thank mezio

i've loved synology for awhile and was looking for a replacement, but recent posts shows they're getitng more anti-consumer by the day - is it just me?

it feels like they don't care about the regular people who helped make them popular in the first place. first, they were going to hard lock their drives[1], get rid of video station[2], and now pushing more monthly subscriptions.

the OS is great, but i don't want to risk having my data hoarding stuff potentially held hostage. i'm thinking UGREEN, but how far is it off from DSM?

[1]: https://community.synology.com/en...ost/194211
[2]: https://community.synology.com/en...ost/189477
3
Mar 29, 2026 12:14 AM
691 Posts
Joined Jul 2013
remboldMar 29, 2026 12:14 AM
691 Posts
Using an old computer with something like Unraid will give you more power and may even be free unless you need to buy adapter cards or a new case. You do have to initially buy Unraid, but it's cheap. I would only recommend it for someone comfortable with building a new computer from scratch and not your average user.
Mar 29, 2026 12:24 AM
85 Posts
Joined Feb 2012
amrogers3Mar 29, 2026 12:24 AM
85 Posts
Quote from CitraNinja :
WD Pro NAS is what I've read are the best for home use. As mentioned, most of them are either over priced or OOS. I did find a 12tb at Amazon for $305 but they were as cheap as $250 on BF. I've heard Seagate iron wolf pro are also good and comparably priced but I personally have always used WD.
Thank you. I will keep an eye out for the WDs. Appreciate the recommendation
Mar 29, 2026 12:26 AM
85 Posts
Joined Feb 2012
amrogers3Mar 29, 2026 12:26 AM
85 Posts
Quote from KLondike5-1212 :
Was going to go with Synoloogy until I read you have to use their drives. Now, I am very happy with my UGreen.
I believe they walked that back
Mar 29, 2026 12:29 AM
85 Posts
Joined Feb 2012
amrogers3Mar 29, 2026 12:29 AM
85 Posts
Quote from An81 :
If I remember correctly, the lowest price for the 925+ was $450.
Interesting. I think I will hold out for the $450

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Mar 29, 2026 01:23 AM
188 Posts
Joined Sep 2007
KippyMar 29, 2026 01:23 AM
188 Posts
Quote from CitraNinja :
Yeah I think that extends thru 2027. In my previous reply I mentioned the WD 12tb nas pro is $305 at Amazon. Only $55 more than the Black Friday deals they had so while it's more, it's something we may have to get used to. Maybe wait for BF and see if they drop the price but that's if they even have stock by then. AI and cloud has just increased the supply and demand of these drives
Personally, I'm going to wait and see what happens at BF.
Mar 29, 2026 01:31 AM
8 Posts
Joined Jun 2018
ElatedBorder615Mar 29, 2026 01:31 AM
8 Posts
20+ year NAS veteran here. Currently have 5 NASs including Truenas, Unraid and Synology (Synology just as a once a month backup for extra redundancy).
This system is good for Raid5 (4 drives), which I don't recommend if you have critical files. There are obviously options with mirror, striped mirror, but you are limited to 4 drives. Without a good 3-2-1 backup strategy, if you are going with just a single system, 4 drives is not ideal.

Synology has the best OS and supports ECC, but their future is questionnable and I waged the battle as I had one of the CPUs on one of their early ones that went tits up due to the intel bug - they did replace it. Was one of my earliest NASs. I've had two Syns since, and will no longer buy one. They rolled back their stupid HD decision, but it still has limitations and with SSDs - and well the fact they went down that path is very concerning. I've also had a power supply die after warranty, and the cost and finding the replacement isn't great. I'm much more of a fan of a build-your-own with a standard power supply.

Ugreen is arguably the biggest contender, great specced systems but the OS has a long way to go to get to Synology levels, if they only had ECC it would be completely over. QNAP lost popularity due to the security issues, but are still great systems.

ECC is highly debated but I would say unless you have a great 3-2-1 backup strategy you want it. Personally for anything critical, I think ECC is a must.
In any case, the NAS cost is fractional to the storage and ram costs currently. If you go pre-built NAS you are going to also have to deal with sodimm ram prices.

IMO, Unraid is hard to beat. Extremely flexible, lots of build-your-own sytems, ZFS, Unraid array supports differing drives w/ dual parity support, which in todays storage cost fiasco can be great. They just annouced a partnership with 45homelab, and has a partnership with Lincplus/Lincstation - or just build your own. The cost is going to be in the storage/ram and you have much more flexibility. The OS is not as polished as Synology, but it does WAY more. Can also run Unraid on Ugreen systems.

Truenas can't leave out, by far the most bulletproof ZFS system, if you are looking for that and can stick with same-sized speced drives it is by far the least risk adversed NAS - but not for the faint of heart.

If you end up with quite a bit of storage needs you are going to be looking at shucking - again this works great with an unraid aray - get two NAS parity drives, then shuck the rest and have them at spin down saving power (depending on your needs). In my unraid server I have 3 ZFS pools as well as the Unraid array dual parity.

Whatever you do, don't depend on this 4 bay synology and use it raid5 without a backup (or any 4 drive system).
Last edited by ElatedBorder615 March 28, 2026 at 06:35 PM.
2
2
Mar 29, 2026 02:45 AM
444 Posts
Joined Apr 2017
VicdagodMar 29, 2026 02:45 AM
444 Posts
I upgraded to 4x26TB for my DS920+. I need to sell my 4x 14tb. Any suggestions?
Mar 29, 2026 03:18 AM
1,607 Posts
Joined May 2014
JSaint828Mar 29, 2026 03:18 AM
1,607 Posts
Quote from Ride_The_Sky :

What size are you considering? I want to start with 2 drives and no raid, just mirror sync so I have access to both drives if one dies, I don't see the benefit or raid for just file storage since I won't be running any high demanding software. I might eventually add NVR 1 more drive, and 1 more drive for plex, and get a 2-drive version for only the important files with a sync off-site.
Synology still does sync over internet to another synology, right?

My main usage will be photos and videos, for Plex it will not require transcoding, since most of my files are really old mp4 rips of my DVDs, and I got 2.5gbps internet, so it's another thing to consider if anyone is looking to access over internet.
>I want to start with 2 drives and no raid, just mirror sync so I have access to both drives if one dies

That's called Raid 1
Mar 29, 2026 03:20 AM
12,865 Posts
Joined Jan 2007
MadPupMar 29, 2026 03:20 AM
12,865 Posts
Quote from VioletRaccoon567 :
Outdated cpu and no GPU, so you're mostly paying for the OS.
The Celeron has Quick Sync so it's good for transcoding. I don't know if the Ryzen has any hardware transcoding.
Mar 29, 2026 03:21 AM
1,607 Posts
Joined May 2014
JSaint828Mar 29, 2026 03:21 AM
1,607 Posts
Quote from ElatedBorder615 :
20+ year NAS veteran here. Currently have 5 NASs including Truenas, Unraid and Synology (Synology just as a once a month backup for extra redundancy).
This system is good for Raid5 (4 drives), which I don't recommend if you have critical files. There are obviously options with mirror, striped mirror, but you are limited to 4 drives. Without a good 3-2-1 backup strategy, if you are going with just a single system, 4 drives is not ideal.

Synology has the best OS and supports ECC, but their future is questionnable and I waged the battle as I had one of the CPUs on one of their early ones that went tits up due to the intel bug - they did replace it. Was one of my earliest NASs. I've had two Syns since, and will no longer buy one. They rolled back their stupid HD decision, but it still has limitations and with SSDs - and well the fact they went down that path is very concerning. I've also had a power supply die after warranty, and the cost and finding the replacement isn't great. I'm much more of a fan of a build-your-own with a standard power supply.

Ugreen is arguably the biggest contender, great specced systems but the OS has a long way to go to get to Synology levels, if they only had ECC it would be completely over. QNAP lost popularity due to the security issues, but are still great systems.

ECC is highly debated but I would say unless you have a great 3-2-1 backup strategy you want it. Personally for anything critical, I think ECC is a must.
In any case, the NAS cost is fractional to the storage and ram costs currently. If you go pre-built NAS you are going to also have to deal with sodimm ram prices.

IMO, Unraid is hard to beat. Extremely flexible, lots of build-your-own sytems, ZFS, Unraid array supports differing drives w/ dual parity support, which in todays storage cost fiasco can be great. They just annouced a partnership with 45homelab, and has a partnership with Lincplus/Lincstation - or just build your own. The cost is going to be in the storage/ram and you have much more flexibility. The OS is not as polished as Synology, but it does WAY more. Can also run Unraid on Ugreen systems.

Truenas can't leave out, by far the most bulletproof ZFS system, if you are looking for that and can stick with same-sized speced drives it is by far the least risk adversed NAS - but not for the faint of heart.

If you end up with quite a bit of storage needs you are going to be looking at shucking - again this works great with an unraid aray - get two NAS parity drives, then shuck the rest and have them at spin down saving power (depending on your needs). In my unraid server I have 3 ZFS pools as well as the Unraid array dual parity.

Whatever you do, don't depend on this 4 bay synology and use it raid5 without a backup (or any 4 drive system).
4 drive NAS is also good for Raid 1 and Raid 10
1
Mar 29, 2026 03:41 AM
62 Posts
Joined Dec 2025
MisterTranceMar 29, 2026 03:41 AM
62 Posts
Great deal but storage prices are crazy right now =/

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Mar 29, 2026 03:44 AM
15,645 Posts
Joined Jan 2010
Ride_The_SkyMar 29, 2026 03:44 AM
15,645 Posts
Quote from JSaint828 :
>I want to start with 2 drives and no raid, just mirror sync so I have access to both drives if one dies

That's called Raid 1
Thanks but I don't want to replicate every single change. Basically I want to have only certain folders backed up. Raid mirrors every single thing including corruptions, deletes, any problems with files. Especially when it comes to unstable apps like Immich. Everyone praises that thing but my experience has been less than satisfactory. It's definitely a good idea but it's got too many moving parts, and caches images by duplicating them creating a huge database. I'm hoping Synology Photos works better.
2

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