New Synology DS423 Value 4-Bay NAS Revealed
Note 15/03/23 – I have updated this article to reflect new information on the chassis design
Synology has unveiled a new 4-bay NAS, the DS423, in its Value Series line. The device features a Realtek ARM v8 processor, marking the latest entry in a likely expanding value range to replace older models such as the DS218, DS118, DS418, DS120j, and DS220j. The DS423 has similar hardware to the company’s previous value/budget devices, with the main difference being an upgrade in processor from the RTD1296 to the RTD1619B. This update will improve DSM and build upon the older generation’s capabilities. Earlier in 2023 we saw Synology release the DS223 2-Bay Value series NAS, which is largely identical to the DS423 (though with one less RJ45 and 2 less bays) and despite it’s modest stature, still supports BTRFS, SHR and even (thanks to the Synology DSM 7.2 beta that rolled out last week) container support too! So, the DS423 NAS has got a reasonable amount of umpf, so such a small device. Let’s discuss what we know about it.
Synology DS423 NAS Hardware Specifications
As previously stated, the majority of the DS423’s hardware is similar to the DS418 NAS. Synology has maintained the same chassis, USB standard, network connection, memory capacity, and scalability. The only significant change is the CPU. However, Realtek’s product family has proven to be successful for Synology in the past, so it makes sense for them to continue using it. Now, let’s take a closer look at the specifications:
 Synology DS423 NAS Drive
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Processor
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Processor model | Realtek RTD1619B |
| Number of CPUs | 1 | |
| processor architecture | 64-bit | |
| processor clock | 4-core 1.7 GHz | |
| hardware encryption engine | Yes | |
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Memory
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system memory | 2 GB DDR4 non-ECC |
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storage device
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Number of slots | 2 |
| Compatible Disk Type |
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| Disk hot-plug support* | Yes | |
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external port
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RJ-45 1GbE LAN port* | 2 |
| USB 3.2 Gen 1 port* | 2 | |
| USB / SD Copy | No | |
| Remark |
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file system
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internal disk |
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| external disk |
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Exterior
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Size (HXWXD) | 166 mm x 199 mm x 223 mm |
| weight | 2.28 kg | |
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other projects
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system fan | 92 mm x 92 mm x 2 pcs |
| fan mode |
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| Front panel LED indicators with adjustable brightness | Yes | |
| Power Auto Reply | Yes | |
| Noise value* | 20.9 dB(A) | |
| Timer switch | Yes | |
| wake on lan | Yes | |
| Power Supply / Transformer | 90W | |
| AC input voltage | 100V to 240V AC | |
| current frequency | 50/60 Hz, single frequency | |
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warranty
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2-year hardware warranty, you can purchase Extended Warranty Plus to enjoy up to 4-year product warranty service. | |
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environment
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RoHS Compliant | |
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package contents
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The Synology brand is not the first to use this processor. The Terramaster brand released their own Value series using the same processor at the end of 2022. In the coming weeks, we will investigate the capabilities of this CPU. However, it is certain that Synology has thoroughly tested the performance and efficiency of DSM 7.1 and the upcoming 7.2 Beta on this processor. The system comes with 2GB of non-ECC DDR4 memory that cannot be upgraded, but this is not surprising for this product family and similar scaling in memory can be expected in other Synology Value tier alternatives for 2023/2024. The system does not feature M.2 NVMe SSD bays, which is not unexpected for this series. Some users may have questions about hard drive and SSD compatibility, as Synology has prioritized their own storage media and upgrades in their Plus and above series.
I am pleased to confirm that the Synology DS423 NAS will have compatibility and support for 3rd party HDD/SSD manufacturers in addition to their own HDDs and SSDs. The maximum supported capacity remains at 18TB, which is in line with their own HAT5300’s limit of 18TB at the time of writing. This means that users of this value tier device will not have to worry about using media from other brands. Let’s now talk about the features and services supported by DSM on the Synology DS423 NAS.
What Are the Software Specifications of the Synology DS423 NAS
The Synology DS423 NAS will arrive with the latest version of DSM 7 available, as well as the support of Synology Hybrid RAID too. As this is an ARM v8 processor, there is going to be the odd compromise here o there (although 4K handling is possible, 4K transcoding and general video encoding/conversion to a meaningful degree is going to be something of a pipe dream! Synology has managed to include the bulk of DSM 7’s features and services with the DS423 hardware here, though the depth of support of 3rd party applications and services is still TBC till I have one in the office for review. Things like Virtual Machines are DEFINITELY NOT going to be possible here and the performance/scale of surveillance on this NAS with Synology’s Surveillance Station application re ging to be a little lighter than on a PLUS model, but again that is something we would expect for a value series device. Let’s go through those services and features of DSM that are supported, as well as the extent to which they run:
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DSM Product Specifications
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storage space management
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Maximum single volume capacity* | 108TB |
| Maximum number of storage spaces | 64 | |
| SSD TRIM | Yes | |
| Support RAID disk array type |
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| Remark |
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file service
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file agreement | SMB/AFP/NFS/FTP/WebDAV |
| Maximum simultaneous SMB/AFP/FTP connections | 200 | |
| Windows Access Control List (ACL) Integration | Yes | |
| NFS Kerberos authentication | Yes | |
| Remark | The test standard is based on the maximum number of simultaneous connections supported by this model. During testing, 25% of the connections were concurrently transferring files. The transmission process only ensures that the connection is not interrupted, and cannot guarantee the minimum transmission speed. | |
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Accounts and Shared Folders
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Maximum number of local user accounts | 1,024 |
| Maximum number of local groups | 256 | |
| Maximum number of shared folders | 256 | |
| Maximum Shared Folder Sync Tasks | 4 | |
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Hybrid Share
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Maximum number of Hybrid Share folders | 5 |
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log center
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Number of logs received per second | 400 |
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General Specifications
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Internet protocol | SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV |
| Supported browsers |
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| supported language | English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภษษไทย, Traditional Chinese, Simplified | |
| Remark | For details of supported browser versions, please refer to DSM Technical Specifications . | |
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Additional Kits View Full Kit List
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Synology Chat
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download station
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Maximum number of download tasks | 80 |
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SAN Manager
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Maximum number of iSCSI Targets | 10 |
| Maximum number of LUNs | 10 | |
| LUN Clone/Snapshot, Windows Offload Data Transfer (ODX) | YES | |
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Media Server
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DLNA compatible | YES |
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Synology Photos
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face recognition | YES |
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Snapshot Replication
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The maximum number of snapshots supported by a single shared folder | 256 |
| Maximum number of system snapshots | 4,096 | |
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Surveillance Station
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The maximum number of cameras supported (camera authorization is required) | 20 (including 2 sets of free licenses) (see compatible IP cameras) |
| Frames per second (FPS) (H.264) | 600 FPS @ 720p (1280×720) 460 FPS @ 1080p (1920×1080) 300 FPS @ 3M (2048×1536) 150 FPS @ 5M (2591×1944) 110 FPS @ 4K (3840×2160) |
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| Frames per second (FPS) (H.265) | 600 FPS @ 720p (1280×720) 500 FPS @ 1080p (1920×1080) 400 FPS @ 3M (2048×1536) 350 FPS @ 5M (2591×1944) 250 FPS @ 4K (3840×2160) |
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| Remark |
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Synology Drive
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Recommended number of clients that can sync simultaneously | 200 (the number of devices that can be connected at the same time when the recommended number of stored files is reached) |
| Recommended number of files to store | 500,000 (applicable to files indexed or belonging to Synology Drive , files accessed through other protocols, please refer to the file service in the above field) | |
| Remark |
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Synology Office
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Maximum number of users | 200 |
| Remark |
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Video Station
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YES | |
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VPN Server
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Maximum number of connections | 20 |
If you are interested in the full range of services and applications (of which the Synology DS423 will likely run around 80% or so of which, just not the higher-end process/graphically demanding ones), you can watch my full Synology DSM 7.1 Review below. It covers pretty much everything and you can use the chapters at the bottom to fast-forward to the appropriate app/service/function that you are most interested in.
Next, let’s discuss how much improvement/difference we have in the DS423 against the DS418 NAS that it is seemingly refreshing for 2023.
How Do the Synology DS423 compare with the DS418 NAS?
The Synology DS423 NAS will not be a significant increase in capabilities compared to the DS418. The new CPU will bring improvements in power, resulting in better performance, but it is also more efficient due to Realtek’s advancements in maximizing these economical processors. The DS423 CPU, which is a newer generation, has a clock speed of 1.7GHz and is quad-core, providing more resources for tasks and using less per task, making it a double win. Below is a comparison of the DS423 and DS418:
Currently, Synology is gradually releasing information about the DS423 NAS globally. The full release of the Synology DS423 NAS is expected to be available globally before the end of the first quarter of 2023. In terms of pricing, Synology is likely to maintain the price point of their other value series NAS devices, so the DS423 is expected to be priced around $399 / £360 / €390. Keep in mind that local taxes and shipping will also apply. Additionally, it is likely that we will see the release of a more versionS of the Realtek RTD1619 value series family NAS in the near future.
Check Amazon and other retailers to see if the Synology DS423 NAS is available now using the links to them below (it supports us, costs you nothing extra and me and Eddie who run NASCompares will get a commission that goes directly back into the YouTube channel and blog):
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USA 31.26 OFF (WAS 401) [LINK]
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Hello,
I am doing research to buy my first NAS to backup files and more importantly family photos and videos. I read a couple of your reviews. Seems 4 bay is a better option to start with (expandability). May I ask how would you compare the DS423 and DS423+? For photo arrangement, which NAS system would have the best software to support?
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Thank you for this detailed overview
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I bought DS423+ after comparison reviews from your channel, and watched this video while still waiting for it to arrive. Great job! Is someone at the door? it’s my NAS arrived!
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Had this on in the background over a couple of days. This is the comment you requested — I made it to the end! =D
It’s definitely not in the budget for me yet, but I’m dreaming about a NAS in my setup in the future!
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DS423 is supporting Btrfs. So what about Active Backup for Business for DS423, and DS420J with DSM 7.2 ?
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i did watch the whole video
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Does anybody know why the DS423 is listed on Synology‘s international sites, but not in Europe?
They often release few models earlier in the east. Maybe something to do with production lines.
I asked Synology about this and got this answer 😩
We don’t have fixed development cycles for our products, so I don’t have any information about a successor of the DS418. Therefore you can assume that the device will not be released in the near future.
Beyond that I can unfortunately not give any reliable information
Synology will never tell you about future releases, even while held at gun point.
Yeah, it’s just weird that the DS423+ and DS423 were both announced together in Asia, Afrika and South America, but in North America and Europe only the DS423+ with the DS418 still listed.
Maybe chip shortage 🤷♂️
seems to me that synology gives everything but what i want which is basically a modern 2 bay with an new higher end intel chip for plex and expandable to 16gb of ram.
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2.5 gbe, 4 gb ram, GPU, minimum for every single product Synology makes in 2023+ or no buy for me.
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Good news Good news, now that Amazon‘s 420 Plus has reduced its price, you can purchase it without hesitation
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Update 15-03-23, I have found out since this video was recorded that the chassis of the Synology DS423 is going to be using the J series casing (as seen in the DS420j, DS418j, DS416j, etc). I have updated the thumbnail for this vid and the details in the article linked here – https://nascompares.com/2023/03/14/synology-ds423-nas-revealed/
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Still, even in 2023 is the best for me DS620slim with 6x8TB SSD Samsung & 2.5GbE Eth. via 5Gbps USB 3.0
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Lame not including 2,5GbE as default on all X23series ????
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What will performance be like for surveillance station? Assuming it can run it?
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Would this be considered a good entry into synology as someone currently without any NAS? This would be a step up from the J model as far as what it can run on the DSM software is my understanding.
I am considering just a DAS as well, but then I get hung up on speeds and RAID software and all that as well. Considering OWC Mercury Elite Pro Quad (USB C 3.1 gen 2). End of the day I would like a 4 bay, Raid 5 (or SRH) system to update my backups and storage system and would use four 4 TB drives unless the next sizes up come down in price to close the gap.
Currently running M1 Mac mini with 512 GB internal. I have an old 1 TB drive on Time Machine duty, as well as a drive pulled from my old mini that I do a CCC backup each week and store in firesafe.
I also have two old 2 TB WD essential drives that hold old media files from back in the day when I ripped all my dvs and streaming was still a crappy option. One drive clones to the other each morning as a backup using CCC.
A new NAS/DAS could take over these duties, freeing up the older drives as some redundancy backups or something. I do use iCloud for my entire user documents folder so it’s all synced and accessible on iPhone and iPad.
*edit* strictly person use for files and backup.
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Another hardware fail from Synology… according to NASCompares it would only cost Synology about 4 cents per ethernet adapter to upgrade them to 2.5 GHz.
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Thks & ??Hows-abouts a DS423 vs DS423+ Smack-Down with Eddie/Sea-Gull in the Peanut-Gallery??
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Another valueless system from Synology that ignores the media server market
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they lost me at 1Gb ethernet – I mean really, people buy these things hoping they will be useful for years – imo this technology is so old it’s almost shameful
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Just Wondering if you will do a video on WHen you should upgrade? I have a DS918+ along with the expansion unit and I mainly use it only for Emby Media I have over 5 Thousand movies and I am looking to get more and more Blu-Rays. Can My Collection get too large??
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Well for those of us that are still on the two bay 200 series and want an upgrade but the 923+ is out of budget, then this is a good alternative. Thanks for all your hard work.
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Have they completely abandoned the J series?
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Great content! Thanks for your time and experience!
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I’ve seen reports of using the read-write cache option causing the entire raid volume to crash if an ssd fails, so I’m personally going to be sticking with the read cache only.
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How this doesn’t have more likes is unjust. He covers so much and shows great examples. He also has time marks for reference. Great resource! Keep up the good work, would give you more likes if I could.
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One thing I wish sonology would do especially further backup program is allow you to back up to a networked windows pool drive aka the NAS sync with networked multipooled Windows drive giving you to a form of backup even if you cannot see the data on the Windows pool that be fine if it was just an encrypted image or better yet allow the damn system to read Windows pool drives…. You’re plugging a USB hub with all your USB drives the nas makes its own virtual pool out of those drives and then it backs up just in case there’s nobody has a single 60 terabyte drive …. The fact that most people are coming from multiple hard drives externally to Nas and can’t use those multiple drives as a single pool backup is annoying especially when there’s hard drive crashes or or anything like that at least you’d have a personal backup I didn’t even pay 10-15 dollars per drive one time fee to make a pool for image backup
I literally had to Jerry rig using always-sync to back up the entire NAS drive on a 9 hard drive pool on the Windows side
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Insert the biggest thing I hate about Synology outside of their “hard drive requirements” (if the damn hard drive says Nas supported then it should just work you shouldn’t need a specific hard drive) is them telling you where to put your media or files for specific programs they own you should be able to tell the programs just like in Plex where the files are where you wanting to put the files and have one way think as an option with no deletion
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I personally find it difficult still for a novice user especially for making user accounts … Aka having public and private folders for individuals in a group setting (you can’t have both) we’re in the group setting everyone has the rules AKA right and no delete for public folder and the ability for only individual users in that group to only see their private folder and not everyone else’s
Aka private “Jon” public “all” private “Sarah”
John can still see Sarah’s folder
Because I haven’t nested in an outside folder public and an outside folder private where all their names are in the private folder so it’s nice and organized
But everyone can still see everyone’s folder I’d love to have it so that you can easily isolate nested folders
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One application they should make is a network photo slideshow screen saver picture frame app with dslp and outside network
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The one and only thing I don’t like about Synology multimedia apps or drive apps…. Is they TELL you where to put your media AND GENERALLY HAVE TWO-WAY SINK AS DEFAULT
Most users are going to have a plexa library that they’ve probably customized and should customize in one bulk “media folder” and then break it down within…. If you do stuff like that for all your multimedia they’re native apps don’t work you have to have it where they want it…. Same with sync you have to have it where they want it and it’s only sync … Me personally I want one-way sink data goes on the NAS … You can delete it off the phone or computer and that won’t transfer over…. They have improved the drive application but I still have to improve video photo and the other ones to be one way and for us to control the locations multiple or single nested location I don’t want to be told or you got to have it in the ” home /user /names/ photo/ to have the photo application work
NO I want to have it in plex media / photos/ cell phone 01/
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why do I need raid 1 on the ssd cache? It doesn’t matter if the data is gone on the cache if one ssd fails. The data is stored on the HDD after a Data is altered in the read/write cache. or is written again from the HDD when a new SSD is added. So that makes no sense. Raid 0 would be better in this case.
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Thank you for this Video!
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Funny how that Security Advisor isn’t barking at you for having the standard 5000 and 5001 ports in use. Mine’s been yelling at me 24/7 about it.
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That really is an in-depth and thorough review. I’ve had the DS1621+ for about a year and you’ve helped explain what some of the apps actually do. Thank you.
As a photographer using Lightroom to manage my my photos, I still cannot understand why I need Synology Photos or S Video to manage them?
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Thank you for the detailed review. I am interestedin buying a new Synology Nas (920+) and i own an old XP 32 bit PC do you think there will be any issues about compatibility from Win XP 32 bit to the DSM 7.1 Synology NAs, in that case does any workaround exist?
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I’m the one who watched the whole thing! And some bits twice. Very helpful in trying to decide between a Synology DS923+ and Qnap TS464. Synology seems to have the upper hand software-wise which I suspect carries more weight for a home user than the superior hardware of the Qnap? Thank you for providing this extensive review!
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Awsome information. Now please a similar video on Qnap. I cant make up my mind as I need both photo management and video surveillance. It seems like Qnap and Synology takes 1 point each.
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Jellyfin?!!! Most channels that review media server software, either only deep-dive their preferred offering, or only give an overview compression of the field. If someone like you, who can give the same enthusiasm creating two videos deep-diving two NASs that only differ by a drive bay, puts that into a spin-off series on a topic that is close to a large chunk of your demographic, that would be a real treat.
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Thks & I just watched it again & most excellent;
I’m a retired physicist & have no real problem understanding the infinite details.
However my problem is how to keep it simple & stupid (ex: high tier levels of simplicity, brevity, encapsulation, etc).
Oh with my goal is to sociably knit-together all my family, relatives, friends, etc on my synology NAS.
Unfortunately I’m going to be Mr Tech support for them. Sooooo I gots-tos keep-it-simple is an understatement & I will be abused (I says anything for family/friends though ;).
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I’m also only seeing 360. Can’t make out any screen. text
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You’re a DSM PhD;
I never hear so dense of a presentation of great DSM info & my head is still spinning, thks.
Next-time, you think about having something good to drink every-once in a-while.
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47:05 Where, When
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Still only 360p for me
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Still just in 360p
Hope it will fix soon.
Thx for all the effort!
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Watched you video from begin to end! Loved the deep dive into DSM, since I am looking into buying a new Synology. Keep up your amazing videos!
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Nice video. Does anyone know why my USB printer doesn’t work anymore on my Nas Synology ?
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Thanks for a great video. Really explains what everything is. Recently got my NAS and been already updating hard drives in it. It will mainly be used as a PLEX Server but already considering what i will do when i start upgrading the smaller drives in it. May consider another NAS and use it as strict data back up and maybe a synology Drive / synology Calendar and Email setup. Move my calendar off Google’s stuff. We will see If i do that at some point. Great job again
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Thank you for all the work you put into this. Very helpful.
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My English man!!! What a video! Greetings from Greece! I really appreciate your hard work and that content. I have a DS 1520 + and I am not regretting getting it although the new 1522 is out. You have my admiration. Keep up the professional and good work.
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Why only 360p is showing ????
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Would it be too much to expect something similar for QTS?
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Why 360p? Can’t see it clearly.
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Wow ! What an episode – a full tutorial for everything ! A one stop shop – Thanx Robbie ‘ol mate !
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Yes was wondering why its. 360p till saw the comments
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*Note* – Regarding picture quality, this is a BIG video (so many features to cover in a single video) and YouTue can sometimes be a little slow to process HD and 4K uploads, so if this video is in low-quality for you, maybe come back in an hour or so, as YouTube should have finished processing it and have the 4K, 1080p and 720p versions done. Thanks for watching and hope you enjoy the review of Synology DSM 7.1, featuring the DS923+ NAS.
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