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This item is eligible for return within 30 days of receipt
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Availability:
Only 5 left in stock, order soon!
Arrives
Aug 31 – Sep 7
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
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:
Aug 31 – Sep 7
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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Similar Products
Top Amazon Reviews
Style: 4-bay; 4GB DDR4
Size: DS923+
I have 4 Synology DS Series NAS Servers for both home and work purposes. I use them for standard file servers, VPN servers, Plex Media Servers, and backup servers. The suite of tools for Synology DSM is impressive and covers all I need without having to purchase 3rd party software. Knowing all my data is safe with the raid array allowing for disc failures is worth the price alone. I have had to rebuild/restore several computers and have not lost a single byte of data. Speed of transfer has been great, even while the DS is under a heavy load. Streaming 4k video has not been a problem to multiple displays simultaneously. I keep these in dedicated spaces so noise is not a consideration for me. I will say that these are very quiet even under load. The build quality is very good and I love the way the discs can be hot swapped without issue. I did have a disc failure on one of my servers. I provided another disc of the same capacity, clicked replace and the system rebuilt the RAID with the new disc. Very easy and did not require any downtime. For me, the price, ease of use, DSM operating system and suite of tools provided puts Synology above all other NAS servers I have used.
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Reviewed in the United States on April 11, 2025 by John M.
Style: 4-bay; 4GB DDR4
Size: DS923+
First of all, let me start by saying, a RAID is NOT a backup in itself, as RAIDs can also fail, corrupting some or all of the data. This can happen at anytime, in year 10 or year 1 and depend on the hardware, which are a combination of the RAID device (NAS, DAS, etc...), de storage medium (Hard Drive, SSD, etc...), power supply, etc.... However the chances of that happening all at once are less than having no RAID at all. My advice, if you are able, is to constantly replace the olders/smallest drive in your (RAID) array with a newer one. Similarly to changing (pairs of) your road tires on your vehicle, before even 1 shows signs of failure or fails at all. Drives in these devices can get into a sleep mode, but are otherwise constantly on and or running/spinning and thus wearing out. Above is basic knowledge for storage and not just Synology. While there are drives and devices (and cars) that can reach a 20year lifetime, certainly not all can or will. There is a "3-2-1 Rule" for data storage/backup out there, which is: - There should be 3 copies of data - On 2 different media - With 1 copy being off-site (aka at different location) As for the purchase of this device, Synology DS 723+, I'm very satisfied with the performance and features. The price reflects that also, even for home use. My previous NAS/RAID devices are a Buffalo Linkstation (2 drive) and a Drobo 5N (5 drive), both are around 10 years old and an 8 drive Drobo at work, still in use. The 5 bay Drobo for it's time had a nice feature of being able to use all (or most of) the usable space when using drives of different sizes, and also being able to swap out any drive out for any other drive (smaller or larger) and the Drobo device would take care of it ALL (called BeyondRaid). No messing with pools or volumes. You only have to make a folder share. For it's time, this was VERY sophisticated and worth the investment then. Even today with Synology you have to specify manually if and how you want to add a drive to a storage pool, and how you want a volume on one of these pools, and then define your shares. For the home user, you'll need some basic knowledge or just read the manual of course if you have not done this ever before. It's just not as straight forward as with a Drobo. However this is not a bad thing in itself, as you may want to configure this Synology device for different uses and keep multiple volumes on different storage pools for different uses etc... I consider this a Pro, but it will require some more knowledge of the workings of this device. It has many other features and plugins (apps) which I will not go into in this review, but again there is a use for each and every one of them for a specific use(r), depending on your needs. Synology now also has a RAID mode capable of using drives of different sizes, they call it SHR (Synology Hybrid Raid) and works similar to Drobo BeyondRAID. Hardware wise, it has 2x Gigabit ports, which can be used individually, as a fallback or bonded. Some other brands have 10Gigabit networking built in, with this particular Synology it is an optional plug-in upgrade at $110 at the time of writing this. I don't have a 10Gigabit network at home at this time, but I will be upgrading down the road, I think. There are also 2 NVME slots which you can utilize for cache (and storage) and you can also upgrade the RAM (memory) if you plan on using more apps (plugins). For basic nas use, this is not required. 1 con for me is the flimsy plastic of the device and the trays. It might be fine for you, and even if made from titanium would not affect the performance of this device at all. However coming from Buffalo (Metal + plastic) and Drobo (full metal), this is a step down. This is also true with the very flimsy plastic disk trays and clips.......... (Drobo uses a trayless design, you just pop in the drives like a VHS cassette in a VCR !). Other bonus features new to me also are the web interface, which is quite snappy. There are also apps/plugins for remote login etc, you can enable this if you want it. I'm still figuring out many of these. All in all I'm satisfied with my purchase so far and will update this review down the road. Purchased in october of 2023.
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Reviewed in the United States on November 15, 2023 by George
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+
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+
We use Synology at the office and I was unsure about using it for home but the user interface is easy to work with, the set up was simple and functionality through the roof! We not only back up all of our computers to it but we also back up all of our iPhone's photos to it resulting in no upcharges from Apple. We do a back up to a cloud service to meet the 3-2-1 best backup practices and it is nice having everything here in my home at my fingertips and under my control. The device is sturdy and the drive bays are easily swappable and allow air flow for cooling. It is quieter than expected when compared to the one in our server room. Our backups happen overnight so I just about never hear the unit when it is backing up our computers.
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Reviewed in the United States on March 17, 2025 by Ex-ChiefJim
Style: 4-bay; 4GB DDR4
Size: DS923+
This is my first new NAS in a long time and I was blown away about how easy it was to setup and how easy the UI is. You manage it through a web interface that pretty much looks and acts like a regular desktop. There are "Apps" you install to do extra stuff and there is a control panel and a file manager. I am VERY happy with this unit and would recommend it to anyone. Here are the things that make it a 4-star instead of a 5-star for me 1) Why not just include the 10 gbps NIC. It's a bummer you need to pay an extra 120 for the addon card. 2) The power connector is VERY POOR. I was doing basic cleaning in my closet and it got nudged free like 3 times. I don't know know they put such a poor power connector on the back of this thing. 4) The m.2 ports are useless unless you buy their m.2s, which are twice the price and half the capacity of the other ones out there. 3) It has an AWESOME surveillance app that you can install afterwards. It picked up my POE reolink cameras without issue. It comes with 2 licenses which is cool but ... to add extra cameras you have to buy more licenses at over $50 per camera. I get they want more money for specialized software on the NAS but the amount they are charging per camera seems a little excessive.
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Reviewed in the United States on July 12, 2023 by BGB
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.