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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 4 left in stock, order soon!
Arrives
Oct 13 – Oct 21
Style: 4-bay; 4GB DDR4
Size: DS923+
Features
- Leverage built-in file and photo management, data protection, virtualization, and surveillance solutions
- Two 1GbE ports for simple integration into existing environments with optional 10GbE connectivity to tackle more specialized, bandwidth-heavy applications
- Add 5 extra drive bays with one DX517 expansion unit for a maximum of 9 storage drives
- 3-year warranty
- Check Synology knowledge center or YouTube channel for help on product setup and additional information
Description
The Synology DS923+ is a capable 4-bay NAS solution that can be adjusted and expanded as your needs change, with optional support for up to nine drives, faster networking, and NVMe SSDs for caching or additional storage pools. Powered by Synology DiskStation Manager (DSM), it offers a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance.
Brand: Synology
Color: Black
Product Dimensions: 6.54"D x 7.83"W x 8.78"H
Size: DS923+
Material: Plastic Metal
Brand: Synology
Number of Items: 1
Manufacturer: Synology
UPC: 846504004454
Unit Count: 1 Count
Built-In Media: 1 x DS923+ main unit; 1 x Quick Installation Guide; 1 x Accessory pack; 1 x AC power adapter; 1 x AC power cord; 2 x RJ-45 LAN cables
Item Type Name: Synology NAS
Model Number: DS923+
Mfr Part Number: DS923+
Warranty Description: 3 Year
Item Dimensions D x W x H: 6.54"D x 7.83"W x 8.78"H
Size: DS923+
Item Weight: 2240 g
Compatible Devices: Android, Desktop, Laptop, Server, iPhone
Mounting Type: Tabletop
Weight Capacity: Maximum weight 4.9 pounds
Color: Black
Enclosure Material: Plastic Metal
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 13 – Oct 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: 4-bay; 4GB DDR4
Size: DS923+
Came to the 923+ after talking with a few coworkers and poking around at an older 411 for a while. No it’s not the most powerful NAS, but it’s more than powerful enough to store files, receive and sync backups, serve up media to my TVs, and run a few small dockers. I run some more resource intensive dockers on another pc I have setup for virtual machines, docker and home surveillance and automation. Biggest win for me is going from an older Dell rack mount server that sucks down 200+ watts, to this unit that comparatively sips power at 20-50 watts depending on load. I calculated that I’ll pay for this unit in less than 2 years from the power savings alone! The unit is easy to manage, runs quiet and is every bit as quick if not quicker than my old server hardware. By far my favorite thing is that the software is incredibly stable. I rarely have downtime for this NAS with it being on a UPS. I really only have “downtime” when I reboot for updates or need to move the unit or make a power change. All this without having to log in some what regularly to make sure nothing was hung or needed to be updated and babysat. I run two 512gb Samsung NVMe drives as mirrored cache disks and they made a very noticeable difference in the read/write performance as file metadata are stored there and is retrieved much faster than a spinning disk and makes browsing data on the hard disks feel much faster than if accessing directly from the spinning disks. I believe that writes are improved by writing first to the cache drive, but do not have the ability to max out my 2gb link aggregate listed below to get to the max write speeds of the disks that are limited to 100MB/s of the ethernet link. Lastly I do run the network ports in link aggregation to my UniFi switch without issue. I do wish the built-in Ethernet ports were 2.5gb, but having the option for 10gb in the future is nice. Overall incredibly happy with this unit. Will stick with Synology NAS units in the future for all of the reasons I listed above, and recommend them to anyone looking for a NAS.
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Reviewed in the United States on May 9, 2024 by AJ Tissier
Style: 4-bay; 4GB DDR4
Size: DS923+
I consider myself to be tech savvy, with generally no experience in setting up and maintaining servers. I'm sure many who purchase something like this are in the same boat as those with the skills would likely set up their own server technically for cheaper. The review I'm writing this for is not for hyper experienced individuals, but those at my level. My purpose behind using this is as a back-uppable repository of family photos, documents, etc. While the documentation behind Synology could use a bit of extra love for less inclined individuals like myself, because of how strong and popular the brand is, there are hundreds of guides online for setting up specific apps - both in the Synology App and within Docker / Containers. This NAS in particular suits the needs of a family / small business well - allowing for expansion down the line. It runs quick - with expandable RAM, and downloads information to the NAS quickly via wired connection. As with any home server, the likely bottleneck is internet connection, both at server side and client side (user) - but if you have a relatively good one such as mine (1Gigabit Fiber), streaming movies and browsing / sharing TBs of photos is pretty much gapless in load. The proprietary Synology RAID, a way to help prevent data loss in case of drive failure, helped me once already. It took quite a while to recover the drive from the rebuild, but the rebuild was flawless with no data loss. All together, 5/5 for those looking for a good, *relatively* easy to set up server with some data safety built in, that you can add all the bells and whistles to over time.
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Reviewed in the United States on April 5, 2024 by A.
Style: 4-bay; 4GB DDR4
Size: DS923+
Nice system but a bit more expensive than other NAS units out there. The main thing that sold me on Synology was their operating system, and the expandability of memory and SSD Cache drives.
Reviewed in the United States on August 3, 2026 by Buster
Style: 4-bay; 4GB DDR4
Size: DS923+
I had been using ASUSTOR NAS' at home but wasn't happy with the available apps that I could run, so I purchased the Synology DS923+ as a replacement and have been extremely happy with it. The user interface is great, the available apps are better than what was available for my ASUSTOR NAS, and this Synology NAS has been extremely stable and fast (I also purchased the 10GbE optional adapter for it). I use this NAS for photo storage, backing up 5 computers / laptops, and as a PLEX server. For photo storage, I installed the Synology Photos app onto 3 android phones so that photos taken on the phones are automatically uploaded to the NAS when the phones connect to our home wifi, then the photos are replicated back to two computers' local storage and finally uploaded to Amazon Photos for ease of access off-wifi (and because my wife prefers accessing photos on her phone via Amazon Photos). This set up allows us to have a synchronized photos library between our phones and computers, managed via the Synology NAS. For backing up computers, the Synology Active Backup for Business is excellent; full computer backups are completed and we have the ability to do file/folder/volume/full computer to restore, to include bare metal recovery if a computer drive completely fails and it's replaced. And, it's free, so allowed me to cancel our old backup software subscription. I fully recommend this NAS and would buy it again; I'm now hooked on Synology NAS'.
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Reviewed in the United States on January 1, 2024 by S. Eiben
Style: 4-bay; 4GB DDR4
Size: DS923+
Like may people I don't think about storage and backup until there is a reason and unfortunately there was a reason when one of my main external drives failed. I'm a part time photographer and had hundreds of clients images on that drive when it folded up. Luckily I was able to piece together most of the files but some are just gone which put me on red alert for a better solution. In comes the need for a solid NAS for storage space, RAID protections and easy backups. I chose the Synology over QNAS and some others because of its solid reviews and excellent OS and interface with a lot of positive feedback from power users. I could not be happier, I have 20 TB of raided storage now, fast read write over my network for editing files in lightroom and even Davinci resolve for small video projects. I have a 20tb Toshiba drive in an enclosure that I do a backup for offsite storage once a week and their built in programs like file manager, access from the web, 2-factor authentication for security and lots more make that a snap. Its quiet, does its job and is easy to use. Highly recommended and will buy Synology in the future.
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Reviewed in the United States on November 17, 2023 by Brett
Style: 4-bay; 4GB DDR4
Size: DS923+
First off: I am not an expert level user. This NAS more than exceeded my home needs. I purchased this DS923+ to replace my old DS213J (worked well enough for me, but I was starting to detect some issues on my old drives in the DS213j. For the price of this NAS I have to take a star away for having a 1GbE speed LAN ports. (It does have 2 of them). But the old DS213J had one 1GbE port. Yes you could purchase a Synology expansion device but I think I would rather buy another NAS than spend the money on an expansion unit. Going from 512MB DDR3 ram to 4GB DDR4 ECC RAM is a very nice upgrade. Having more RAM and CPU is something expect from a PLUS (+) NAS from Synology. Going from 2 USB 2.0 port (480Mbs) to 2 USB 3.2 Gen1 ports (5Gps) is a very nice upgrade.... but I have trouble finding USB external that come close to going that fast. Having a fast LAN ethernet cable would have been a lot better for me. General use: The UI and setup of the DS923+ was very snappy when compared to my old DS213j. I did not have any issues transferring my data to the new NAS. Bit sad/frustrating that this NAS does not have a good enough hardware to transcode video fast enough to use as a video server. That is not the NAS you want if you want to be able to do stuff like that. Software: The synology OS has improved over time and has been rather reliable to me. It was more than a bit confusing figuring out what all of the modules do and what can be removed (without causing more problems for me). I am using FOUR Seagate IronWolf 4TB drives ST4000VNZ06/006 drives. They are CMR drives. I have not experienced any issues using them in my NAS. 4 out of 5 stars for me. I wish it was a bit cheaper or came with a faster LAN out of the box.
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Reviewed in the United States on March 21, 2025 by subwayfox
Style: 4-bay; 4GB DDR4
Size: DS923+
Why I ordered this item: I run a small business out of my house and I've been storing files on a mix of external drives and an old consumer NAS for years. It was getting screwy. I wanted something I could trust and potentially grow with, so I went with the DS923+. Likes: * The software on this thing is bonkers good. I was able to get file sharing, automatic photo backup from everyone in my house, and a basic surveillance feed from my driveway camera all running within a few hours of setup. Its all running through Synology's DSM interface and it's zippy and responsive. * The two network ports are great for my setup. I plugged both in and enabled link aggregation and my file transfers to the NAS got noticeably faster. I loaded my drives, powered it on, pointed my browser at the setup page, and was off to the races in maybe 20 minutes. * The drive bays feel sturdy and the drives click into their trays with a satisfying snap. Nothing feels flimsy at all. No likes: * It's expensive. There's no way around that. The drives are also sold separately, so budget accordingly. Would I pay full price for this product: Yes Final thoughts: The DSM software alone justifies a lot of the price. I had file sharing, photo backup, and a camera feed running off one box in an afternoon. The chassis is thick plastic with metal drive trays and the whole unit barely makes a sound under load. It's a lot of money but I got a legitimate business-grade box out of it, not just fancy packaging around a consumer product.
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Reviewed in the United States on August 29, 2026 by Amazon Customer
Style: 4-bay; 4GB DDR4
Size: DS923+
We have a small business in an office with a server and five workstations near our home. I was backing up by 'sneaker net'; loading everything onto a portable SSD and bringing it home to download. An IT friend offered to set up a NAS system for me, recommending Synology. I ordered the DS-923+ (which had gone on sale for the same price as the DS-423+) and four 4TB Synology HDDs. I added an APC Backup-UPS to spike the ball. My original intention was to install all this at my house and backup via VPN but he doesn't roll that way, preferring to send all the backups to the clouds. One day after installation I can see this is far more than just a cool, redundant back-up drive. It is a server in its own right with a solid array of functions. I am going to have to go to school to get full value out of this new hardware, but the first impressions are more than reassuring. In the end, my OCD will probably induce me to install another NAS at home and VPN tunnel to the office for off-site backups, avoiding the cloud, and allowing me to manage personal data. At day's end, although I am adept at computing and networks, the NAS learning curve here is steeper than anticipated, even though Synology is known for being the most user-friendly. Or maybe my IT friend is showing off. Either way, I'm happy about the upgrade and look forward to learning more about its myriad functions.
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Reviewed in the United States on February 10, 2024 by Robert H.