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Synology

Synology 4 bay NAS DiskStation DS920+ (Diskless), 4-bay; 4GB DDR4

Based on 2,841 reviews
Condition: Used - Like New
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$676.65
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Arrives Thursday, Nov 5
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At a glance

Condition
Used - Like New
Style
4-bay; 4GB DDR4
Size
DS920+
Weight
2.24 kg
Color
Black
Material
Metal
Mounting Type
Tabletop
Warranty
3 year
Works with
Camera, Desktop, Laptop, Smartphone, Television

Features 5

  • Two built-in M.2 2280 NVMe SSD slots permit cache acceleration without occupying storage drive bays.
  • Intel quad-core processor with AES-NI hardware encryption engine, over 225 MB/s sequential read and write throughput.
  • 4 GB DDR4 memory (expandable up to 8 GB); Scalable up to 9 drives with Synology DX517
  • Average 15% performance boost to photo indexing and other computing-intensive operations, as well as database response time.

Description

Synology DiskStation DS920+ is an ideal network-attached storage solution designed to streamline data management and productivity. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance. With scalable storage design, DS920+ lets you start small and expand storage capacity with the Synology DX517 as your data grows.

Specs 13

Brand Synology
Color Black
Size DS920+
Material Metal
Number of Items 1
Manufacturer Synology
UPC 846504003815
Global Trade Identification Number 12

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If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

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Top Amazon Reviews

I've bought three of these and I could not be more impressed
Style: 4-bay; 4GB DDR4 Size: DS920+
I work as a technician for a number of clients, both personal and in small business. One of my clients had ongoing issues replacing their old server (they didn't know what they were doing and got themselves into trouble, which is where I came in). After a day or two of looking at their "new server" and then what they needed (basically, just file storage/sharing), I thought a NAS would meet their needs. I already owned (personally) a small NAS, but I hated it, so I went shopping for something of higher quality. I hit upon Synology as the obvious choice in this range, and while the pricing was higher than "what you could get a NAS for", it was still far less expensive than my client's alternatives. The hardware is easy to set up, even if you're adding RAM or cache disks, as long as you're comfortable doing some basic hardware-type stuff. Adding disks is easier than changing disks in a desktop (but 2.5 drives will need an adapter). Adding RAM is a little bit easier than would be in a laptop (you have to remove some of the disks, but don't need tools). Adding cache disks is similar to adding RAM to a laptop-- flip it over, screwdriver, insert, ya done. IMPORTANT: if you want write-caching, you HAVE to use a second cache disk. For whatever reason, you can't split a cache volume for read/write. If you have just one disk, you can only use Read caching. I wish I had known this ahead of time, or I wouldn't have gotten as large a cache volume, though it is serving me pretty well. Once booted up and online, though, is when a world of wonder begins. The system has feature upon feature upon feature, allowing it to replace far more than just a file server, at no extra cost. There is a package system where you can download optional packages, including things like: Video streaming service (2 kinds!), audio server (complete with mobile app to stream your own music to your phone), Cloud Storage (your own personal Dropbox), system backup (that is, software to backup systems on your network to the NAS) and ways to back up the NAS to elsewhere, IP camera software (with a few licenses included), mail server, group calendar, WebDAV connections, and so much other stuff. You could certainly get all of these features by building your own NAS and using all the open source software out there, but for the amount of effort and ease-of-use here, it's no contest. One thing I was very impressed by with the initial configuration is that Synology have their own type of RAID setup called (SHR-- Synology Hybrid RAID). It has the data-protection and speed benefits of a RAID, but allows it to be used across completely dissimilar disks, as well as adding disks to the same SHR later on (and the volume checking and expansion happens while the NAS is still working)-- this definitely lowers the commitment anxiety to setting up a new disk array. It also has a USB 3.0 port in the front, and you can add external disks that can be mounted and shared seamlessly. The system is highly configurable through the UI, but you can also open a Terminal, or use SSH (if enabled). The task scheduling system can call bash scripts, also. This makes me feel like the UI is a convenience, not a required hindrance. That said, though, the UI is ridiculously thorough. ... show more
Reviewed in the United States on March 19, 2021 by Fletcher
Over the moon with this NAS
Style: 4-bay; 4GB DDR4 Size: DS920+
Hi Everyone, I have had mine for a few weeks now and I consider myself somewhat of a heavy user and this seems to hold up very well, I work with photography and I moved roughly 40000 images over to the NAS and I have Synology Moments app running and the AI facial recognition is simply amazing and really help me find some order to my life :) I must say the NAS did work hard to catalog all those pictures and the CPU was averaging around 99%. Even though with the high CPU usage I was login and use the system, for the other users that I have created they didn't really notice the overhead on the CPU during this time ( Which took around 2 days for the AI to do it's thing) However I also have the 220J and when I tried adding that number of images, we had to wait for the cataloging to complete before I could do anything. Being able to access my files and photos remotely thanks to Synology's quickconnect/Drive options is simply fantastic, This is also a great option to create backups for your phone/laptop whether you are away or at home for the whole family or colleges. Synology has a great SHR Raid, (Synology Hybrid RAID), thanks to this RAID I was able to expanded my volume without having to rebuild the array and still have 1 drive fault tolerance and zero down time! I haven't had any trouble with mine thus far, it was really easy to setup and connect, it was as simple as going to a find.synology.com from your PC/laptop which is on the same network and either create a synology account or sign into an existing account. I will be looking at the Synology 420+ in the future and setting up a remote/ off site backup and open a lot more possibilities. ( I'll circle back here in a few months or so to add any additional comments. My primarily uses are at the moment are: Phone/ laptop backup and shares (Synology Drive) photography file managing and organization, It's more than a giant hard drive. I also have DNS (Domain Naming service) running on it for the network. Docker, which allows you the ability to build virtual machines within your NAS. (pretty useful) If you are thinking of purchasing this Synology 920+ I can assure you, this a great NAS with enough options to upgrade in the future. As it supports the additional drive unit which can be attached. ( If you go with additional expansion bays, I suggest creating separate volumes for each unit rather than creating 1 volume across both units.) you are also able to upgrade the memory to 8GB and add SSD caching to further improve the performance. If you have any question, please ask. Thank you ... show more
Reviewed in the United States on February 17, 2021 by Mike
Synology 4 bay NAS DiskStation DS920+ - Very happy with this purchase.
Style: 4-bay; 4GB DDR4 Size: DS920+
I purchased this NAS to be able to access my files from any of my computers and have all the files in one place safe and backed up so no matter what computer I use I am always accessing the same file and it is always up to date. There is a bit of a learning curve so if you are new to Network attached storage you will have to invest some time for the setup. That being said I would highly recommend a Synology NAS. The software is well written and I did not run into any glitches. The unit I ordered did not come with any HDD’s so I purchased four Seagate IronWolf 4TB HDD’s. I upgraded with a 4GB Synology memory module for the ram, and two Samsung 970 Plus 1TB M.2 NVMe SSD’s for the Cache. The unit will work fine without the upgrades but will work better with them. The Synology website has a page to show what upgrades are compatible with the unit you purchased, and are supported by Synology. I set up my HDD’s with SHR2 so I can lose up to two HDD’s at one time and my Data will still be safe. I also set up my NAS system so it will back up to a WD Elements backup drive automatically at night. If you are new to NAS units there are some great YouTube videos to get you started. I would recommend doing a YouTube search for sinology NAS and SpaceRex His Vids are clear and to the point. He has everything from getting started to adding cache, and making backups. Plus: • This NAS can do far more than I would ever need it to. (Research the many options) • Everything works just as I wanted it to, all my files are finally in one place and safe from HDD failure. • Front LED’s brightness is adjustable. • Fan speed is adjustable • Easily upgradable to larger HDD’s • Lots of great how to videos and info online Minus: • If you use mechanical HDD’s There may be a small lag while the drives are spinning up after being in sleep mode. (The optional cache can help with that) • Newbs will need to invest some time to learn the system, (It’s not that hard and well worth the investment in time). I did a lot of research before deciding on Synology and I am very happy with my choice. My personal opinion is that the Synology hybrid raid system, SHR, and SHR2 is superior to that of a regular raid system and I can always easily upgrade to larger HDD’s down the road if my needs change. I would definitely purchase this again. ... show more
Reviewed in the United States on April 19, 2022 by Ron R Real Reviews
A solid NAS at a good price point, trust Synology
Style: 4-bay; 4GB DDR4 Size: DS920+
I've used Synology products before so when it came time to replace my old NAS I looked at the new Synology models. The 4 bay DS920+ isn't cheap, but it gives entry into the Synology eco-system and tech support. You pick the number of drives and sizes you want and buy them separately, which might provoke a bit of anxiety to some, but they've got this down so it's dead simple. I went with Seagate NAS Ironwolf drives, 3 in a RAID 5 configuration with a 4th hot spare. The drives mount quickly and easily with snap in-rails on the drive trays and slide right in. Synology's DSM software walks you through set up and there are pro-level options if you want to tweak it to your heart's content. The NAS features 2 1-gig ethernet ports and supports "bonding" the ethernet ports if you want 2 GB bandwith if you have a switch that supports it. I did this with a cheap TP-link TL-GS108e switch, really easy to set up through their web interface, and it just works. The NAS provides excellent monitoring to keep things humming and healthy (e.g., you get real time measures of individual hard drive temperatures and the fan speed is adjustable with the DSM software. The NAS supports a variety of software packages, including a free antivirus software as well as a paid McAfee app. Other apps available include a Plex server, web-hosting support, and support for external drives and surveillance cameras. The drive can be augmented with additional RAM and there are two slots for SSD drives for read/write caching if you need it. I attached my UPC UPS to the NAS via UPC's USB interface and the NAS immediately recognized it and it's easy to configure within the DSM how the NAS responds to power outages based either on runtime or the available charge in the UPS. Overall, the great thing about Synology is the vast depth of technical resources and documentation available. Highly recommended. You can find cheaper, but this really is a case of you get what you pay for. ... show more
Reviewed in the United States on March 23, 2021 by S. McCallister
Easy setup, great UI, works well, very happy
Style: 4-bay; 4GB DDR4 Size: DS920+
After one week, my impression is very positive. I'm very happy with my purchase, which was the DS920+. My goal was to 1) setup a media server and 2) setup a backup solution. This box achieves both of my goals very well. Highlights: - Super easy setup - Powerful UI that's easy to use - Package center (their app store) is convenient - Seems to just work (so far) Lowlights: - I wish it were cheaper (of course) - File system is a bit glitchy when using rsync Disclaimer: I'm a tech professional; not versed in IT specifically, but I'm pretty comfortable with tech Based on reading others' reviews, I was nervous about the setup. However, it turned out to be super easy and straightforward once I gave it a shot. I was able to get it going pretty quickly, then it was just a matter of waiting for the disks to be setup and copying my data over. The USB connection made it easy to do that. I really like the UI they've built. The best part is the Package Center, which makes a lot of things available with a few clicks. For example, just search for Plex, hit "install", then just set it up on a shared folder. Got it up and running very quickly. Overall, pretty happy with this box. I would highly recommended it. Not sure why others had so much trouble, it was pretty straightforward for me. ... show more
Reviewed in the United States on October 2, 2020 by KT
Meets expectations, DSM Photos is a tragedy
Style: 4-bay; 4GB DDR4 Size: DS920+
Firstly, I bought this on Black Friday. Normal price was asking too much, in my opinion. DSM 6 (disk station manager) is easy to setup and easy to manage. Last time I used a Synology, DSM 4 had just come out and the general look and feel has not changed much since then. The lack of 2.5 Gb network is slightly disappointing but I'll probably never need it. An HDMI output would have been really nice, though. In terms of port variety, this disk station is behind the competition from QNAP and other. If you are looking for an alternative to Google Photos or any other online photo service, the options offered by Synology Disk Stations (which are Moments and Photo Station) are not anywhere close to equal. They just aren't. They lack features. There are issues with messing up photo metadata. There are issues with messing up the date taken when photos are imported. I've been trying Photo Station and the interface is unbelievably slow. I don't understand why it takes 3 to 4 seconds to delete a single photo, and deleting several photos takes can take considerably longer. It doesn't make sense. You can buy about 10 years of a Google Photos subscription for the price of this thing and if photos is your main reason for looking at this, you should look elsewhere. General file serving performance and features are great. No complaints. Performance of the 920+ is great. I have not done any video streaming but everything I've read tells me that this unit is very capable of streaming 4K video. Power consumption at idle is great. I plug an external drive into the eSATA port to make backups. Although, I'm running a 3 drive array and I'm going to put a backup drive in the 4th bay to make backups to. Diehards will chastise me and say I should be making off-site backups. Yeah, I know. I have an APC battery backup plugged in but the DS920+ says no battery backup is detected. I'm not sure what's up with that. I need to investigate. It could be an issue with the APC unit. Performance and accessibility over WAN will depend entirely on your WAN connection. My connection is 250mb/100mb which seems like it should be decent but it feels very slow. I'm not sure what to think. My main purpose in buying this thing is to have all of my files accessible from any computer I am using. This thing fills that role perfectly, but much cheaper units would have done the same. I bought this in particular for the extra features I can play with if I want to, and for the pretty good hardware spec which should offer sufficient performance for years to come. ... show more
Reviewed in the United States on February 11, 2021 by Some One
Great NAS for home office
Style: 4-bay; 4GB DDR4 Size: DS920+
I replaced an older Netgear 4 bay NAS with this one and the Synology is far superior in most ways. I did add the two NVMe SSDs for read and write cache and upgraded the memory to 8GB. 1) My disks and the unit run cooler. 2) The unit is whisper quiet while keeping everything cool. 3) It is much faster as far as responsiveness, responds like an internal disk or SSD when looking at files etc. (I'm sure the 500GB of SSD cache has a lot to do with that) 4) Using the duel Gbit interfaces in bonded mode I am able to sustain ~ 230 MB/sec write speeds (115 MB/sec from two different systems doing simultaneous backups. 5) User interface is good and easy to use 6) Lots of built in and downloadable apps available for most anything you want to do. 7) Built the 4 disk 56TB RAID 5 and optimized it in 20 hours which is much faster than my old unit with the same disks. 8) CPU seems to have plenty of power for running the extra apps. My CPU utilization is about 26% under heavy dual system backups. 9) The Hyperbackup app works well and was fairly easy to setup to use rsync to a TrueNAS system. Overall I am quite happy with the DS920+ and would recommend it to anyone looking for a great home or home office NAS ... show more
Reviewed in the United States on May 3, 2022 by Bruce Crutcher
A great Plex server and NAS all in one
Style: 4-bay; 4GB DDR4 Size: DS920+
Review Image by Aaron Gleason
Yes, this NAS can do a lot more than just being a Plex server and a file server, but that's all I'm using at this moment. I will update this review if I start adding significantly more features to the NAS. First of all, even with a Celeron processor, it has no problems transcoding 4K video in real time for display on other devices through Plex. When transcoding 4K to my iPhone XR, the CPU usage was around 5%. That means this little NAS could likely handle multiple 4K transcoding streams at once... probably limited more by network bandwidth than CPU power. This is likely because this is a very recent Celeron that just came out in the 4th quarter of 2019. The one thing that really surprised me was the quality of its user interface. It is web-based, but if you put it in full screen in your browser, it looks like (and works like) Linux. They really put a lot of effort into the user interface! Configuring things in the Control Panel has "basic" and "advanced" options, so even beginner users won't be overwhelmed. It's one-click easy to add new "packages" (add-in programs, essentially) to your NAS. Adding Plex is a single click and you're off. I enabled SSH to better communicate with my Linux servers and was surprised that the software didn't automatically create a home directory for my user account. It's easy to resolve, but it was an oversight. A very small one., and about the only thing that didn't work absolutely perfectly right out of the box. Migrating files from my failing 5TB external drive (NTFS formatted) to the NAS was as easy as plugging the drive into the front USB port. The user interface picked it up immediately, and I was able to use the File Station to move the files exactly where I wanted them. I purchased my DS920+ with two 8TB Seagate Iron Wolf NAS drives, with the thought that I can add up to two more in the future. When I need the storage, I will update this review and talk about how easy/difficult it was. Note that the Iron Wolf drives "tick" every 5 seconds or so, so if you are using this NAS in a bedroom, it might be annoying to you. My NAS is in my closet with my other networking equipment so I don't notice the noise. ... show more
Reviewed in the United States on October 2, 2020 by Aaron Gleason
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