Synology DS423 NAS Revealed

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
Processor	Processor model	Realtek RTD1619B
	Number of CPUs	1
	processor architecture	64-bit
	processor clock	4-core 1.7 GHz
	hardware encryption engine	Yes
Memory	system memory	2 GB DDR4 non-ECC
storage device	Number of slots	2
	Compatible Disk Type	3.5″ SATA HDD 2.5″ SATA SSD
	Disk hot-plug support*	Yes
external port	RJ-45 1GbE LAN port*	2
	USB 3.2 Gen 1 port*	2
	USB / SD Copy	No
	Remark	The maximum MTU value of the 1GbE network port of this product is 1500. The USB-IF renamed the standard formerly known as USB 3.0 as USB 3.2 Gen 1 in 2019.
file system	internal disk	Btrfs EXT4
	external disk	Btrfs EXT4 EXT3 FAT NTFS HFS+ exFAT
Exterior	Size (HXWXD)	166 mm x 199 mm x 223 mm
	weight	2.28 kg
other projects	system fan	92 mm x 92 mm x 2 pcs
	fan mode	full speed mode low-temperature mode silent mode
	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
warranty	2-year hardware warranty, you can purchase Extended Warranty Plus to enjoy up to 4-year product warranty service.
environment	RoHS Compliant
package contents	Host X 1 Accessory bag X 1 Transformer X 1 Power cord X 1 RJ-45 network cable X 1 Quick Installation Guide X 1

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:

DSM Product Specifications
storage space management	Maximum single volume capacity*	108TB
	Maximum number of storage spaces	64
	SSD TRIM	Yes
	Support RAID disk array type	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6
	Remark	The usable capacity of each volume is lower than the size of the maximum volume, and actually depends on the file system and the amount of system metadata stored. The actual maximum storage pool and storage space size depends on the hard disk capacity used, the number of available disk slots and the RAID type.
file service	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.
Accounts and Shared Folders	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
Hybrid Share	Maximum number of Hybrid Share folders	5
log center	Number of logs received per second	400
General Specifications	Internet protocol	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
	Supported browsers	Google Chrome firefox Microsoft Edge Safari
	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 .
Additional Kits View Full Kit List
Synology Chat
download station	Maximum number of download tasks	80
SAN Manager	Maximum number of iSCSI Targets	10
	Maximum number of LUNs	10
	LUN Clone/Snapshot, Windows Offload Data Transfer (ODX)	YES
Media Server	DLNA compatible	YES
Synology Photos	face recognition	YES
Snapshot Replication	The maximum number of snapshots supported by a single shared folder	256
	Maximum number of system snapshots	4,096
Surveillance Station	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)
	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)
	Remark	Maximum number of IP cameras and FPS figures are the result of a test unit recording continuously with a full hard drive. Actual system capacity will vary based on system configuration, hard drive performance, number of features enabled, and presence of other workloads.
Synology Drive	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	Exceeding the recommended amounts above will not cause the kit to stop functioning, it will just cause longer response times. The Btrfs file system and unencrypted shared folders were used in the above tests.
Synology Office	Maximum number of users	200
	Remark	The test opens multiple files, and each file is edited by 30 users at the same time. Client performance may affect the maximum number of simultaneous editing users. Client test computer specifications: Intel Core i3-3220 / 8GB memory
Video Station	YES
VPN Server	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):

Amazon UK 7.43 OFF (WAS 373) [LINK]
Amazon UK 14.98 OFF (WAS 500) [LINK]
Amazon USA 21.54 OFF (WAS 536) [LINK]
Amazon USA 4.94 OFF (WAS 557) [LINK]

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