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Description
Synology Network Attached Storage DS420+ 4bay NAS DiskStation (Diskless) RetailMPN DS420+ Hardware Specs CPU CPU Model Intel Celeron J4025 CPU Architecture 64 bit CPU Frequency 2 core 2. 0 (base) 2. 9 (burst) GHz Hardware Encryption Engine (AES NI) Yes Storage Drive Bays 4 M. 2 Drive Slots 2 (NVMe) Compatible Drive Type 3. 5" SATA HDD 2. 5" SATA HDD 2. 5" SATA SSD M. 2 2280 NVMe SSD Maximum Internal Raw Capacity 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) Maximum Single Volume Size 108 TB Hot Swappable Drive Yes
MPNDS420+
Hardware Specs
CPU
CPU Model
Intel Celeron J4025
CPU Architecture
64-bit
CPU Frequency
2-core 2.0 (base) / 2.9 (burst) GHz
Hardware Encryption Engine (AES-NI)
Yes
Storage
Drive Bays
4
M.2 Drive Slots
2 (NVMe)
Compatible Drive Type
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
Maximum Internal Raw Capacity
64 TB (16 TB drive x 4) (Capacity may vary by RAID types)
Maximum Single Volume Size
108 TB
Hot Swappable Drive
Yes
Notes
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
The maximum single volume size is not directly related to the maximum raw capacity.
Each internal volume (may consist of multiple drives) is expandable up to 108TB.
External Ports
RJ-45 1GbE LAN Port
2 (with Link Aggregation / Failover support)
USB 3.0 Port
2
File System
Internal Drives
Btrfs
EXT4
External Drives
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT
Notes
exFAT Access is purchased separately in Package Center.
Others
System Fan
92 mm x 92 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Brightness Adjustable Front LED Indicators
Yes
Power Recovery
Yes
Noise Level
19.8 dB(A)
Scheduled Power On / Off
Yes
Wake on LAN / WAN
Yes
Power Supply Unit / Adapter
90 W
AC Input Power Voltage
100 V to 240 V AC
Power Frequency
50/60 Hz, Single Phase
Power Consumption
28.30 W (Access)
8.45 W (HDD Hibernation)
British Thermal Unit
96.63 BTU/hr (Access)
72.11 BTU/hr (HDD Hibernation)
Notes
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A), Temperature: 24.25-25.75oC, Humidity: 58.2-61.8%
Temperature
Operating Temperature
0oC to 40oC (32oF to 104oF)
Storage Temperature
-20oC to 60oC (-5oF to 140oF)
Relative Humidity
5% to 95% RH
Certification
EAC
VCCI
CCC
RCM
KC
FCC
CE
BSMI
Environment
RoHS Compliant
Packaging Content
Main Unit X 1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Quick Installation Guide X 1
Optional Accessories
DDR4 non-ECC SODIMM: D4NESO-2666-4G
2.5" SATA SSD: SAT5200
M.2 2280 NVMe SSD: SNV3400
VisualStation: VS960HD/VS360HD
Surveillance Device License Pack
Notes
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Software Specs
DSM Specifications
Storage Management
Maximum Internal Volume Number
64
Maximum iSCSI Target Number
128
Maximum iSCSI LUN
256
iSCSI LUN Clone/Snapshot, Windows ODX
Yes
SSD Read / Write Cache
Yes
SSD TRIM
Yes
Supported RAID Type
Synology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration
Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
Volume Expansion by Adding a HDD
Synology Hybrid RAID
JBOD
RAID 5
Global Hot Spare Supported RAID Type
Synology Hybrid RAID
RAID 1
RAID 5
File Services
File Protocol
CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections
500
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion)
1,500
Windows Access Control List (ACL) Integration
Yes
NFS Kerberos Authentication
Yes
Account and Shared Folder
Maximum Local User Accounts
2,048
Maximum Local Groups
256
Maximum Shared Folder
512
Maximum Shared Folder Sync Tasks
8
High Availability
Synology High Availability
Yes
Log Center
Syslog Events per Second
400
Virtualization
VMware vSphere 6 with VAAI
Yes
Windows Server 2016
Yes
Citrix Ready
Yes
OpenStack
Yes
General Specifications
Networking Protocols
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
Chrome
Firefox
Edge
Internet Explorer 10 onwards
Safari 10 onwards
Safari (iOS 10 onwards)
Chrome (Android 6.0 onwards)
Supported Language
English, Deutsch, Franais, Italiano, Espaol, Dansk, Norsk, Svenska, Nederlands, , Polski, Magyar, Portugus do Brasil, Portugus Europeu, Trke, esk, , , , ,
Add-on Packages
Antivirus by McAfee (Trial)
Yes
Central Management System
Yes
Synology Chat
Maximum Users
1,000
Notes
The number of concurrent HTTP connections for Synology Chat was configured to the maximum.
CPU and RAM usage were both under 80% when the number of maximum users was reached.
For tested models with expandable memory, the maximum amount of RAM was installed.
Document Viewer
Yes
Download Station
Maximum Concurrent Download Tasks
80
exFAT Access (Optional)
Yes
Synology MailPlus / MailPlus Server
Free Email Accounts
5
Maximum Number of Concurrent Users
50
Maximum Server Performance
936,000 emails per day, approx. 28GB
Notes
The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
For tested models with expandable memory, the maximum amount of RAM was installed.
Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).
Media Server
DLNA Compliance
Yes
Moments
Facial Recognition
Yes
Subject Recognition
Yes
Auto Color and Rotate
Yes
Moments Select
Yes
Snapshot Replication
Maximum Snapshots per Shared Folder
1,024
Maximum of System Snapshots
65,536
Surveillance Station
Maximum IP cam
25 (including 2 Free License)
Total FPS (H.264)
750 FPS at 720p (1280x720)
700 FPS at 1080p (1920x1080)
350 FPS at 3M (2048x1536)
240 FPS at 5M (2591x1944)
120 FPS at 4K (3840x2160)
Total FPS (H.265)
750 FPS at 720p (1280x720)
750 FPS at 1080p (1920x1080)
500 FPS at 3M (2048x1536)
250 FPS at 5M (2591x1944)
200 FPS at 4K (3840x2160)
Total FPS (MJPEG)
450 FPS at 720p (1280x720)
250 FPS at 1080p (1920x1080)
160 FPS at 3M (2048x1536)
130 FPS at 5M (2591x1944)
Notes
Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
The maximum channel number also includes devices installed on Virtual DSM.
Total FPS may be affected by other services running at the same time (e.g., archive tasks performed by Archive Vault).
Synology Drive
Recommended Number of Hosted Files
500,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Recommended Number of Concurrent Sync Clients
350 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Notes
For tested models with expandable memory, the maximum amount of RAM was installed.
Exceeding the limits above may result in longer response time in file operations.
Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Maximum Users
600
Notes
Multiple files were opened for testing and each file was edited by 30 users simultaneously.
CPU and RAM usage were both under 80% when the number of maximum users was reached.
For tested models with expandable memory, the maximum amount of RAM was installed.
Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Video Station
Yes
Virtual Machine Manager
Recommended Virtual Machine Instances
2
Recommended Virtual DSM Number
2 (including 1 Free License)
Notes
The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections
30
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1354 reviews
Sort
Product Reviews
★★★★★ 5
Fast results
Style: MULTIBALM, Style: MULTIBALM
This moisturizing stick is incredible. This is by far the best beauty product I have tried. I had a noticeable difference in my skins appearance in just a couple days. Week 2 my skin is brighter, clearer, softer, bouncier, and just looks overall more healthy. I have tried numerous products for day and night time. I have been using the multi balm stick twice a day and am so impressed. I wait a few minutes to apply make up as it needs a bit to soak in but I was happy it does work well under your make up. Also has a light sweet fragrance with no irritation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
★★★★★ 5
Convenient Hydrating Balm for Quick Touch-Ups
Style: MULTIBALM
Really enjoying this balm stick so far. It’s super convenient to toss in a bag and easy to apply throughout the day whenever my skin feels dry or needs a little glow. It glides on smoothly and gives a hydrated, dewy look without feeling heavy.
I especially like using it on dry areas and around fine lines for a quick refresh. The packaging feels nice quality too. Great skincare item for easy on-the-go use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
★★★★★ 5
I don’t often leave reviews, but this exceeded my expectations and I LOVE it!!! I NEEDED it!
Style: MULTIBALM
I don’t review things unless they REALLY “wow” me, rare, lol. My eyes had been watering for about a month from allergies, then last week my eyeballs were literally hurting so badly, which that had never happened to me before. So I got eye drops made with ketotifen (from the Walmart App) and it got rid of the pain in my eyeballs and stopped symptoms immediately, thank goodness. Then, from the constant watering, rubbing, dabbing and wiping my eyes, alll above, below and around my eyes became raw and chapped, burning and painful. I tried everything! Aquaphore, Goldbond, Pili Ani, and a lot of other brand name high quality face washes, moisturizers, masks, creams, oils and nothing was helping and some seemed to make it even worse. I saw this product and after reading the reviews, decided to give this one last shot before going to a Dermatologist. The moment I applied it, I felt INSTANT relief and soothing. I also was surprised to literally feel it tighten the skin! This morning I woke up to use it, day 3, and before I did I noticed my skin was so much better!!!…No longer painful, discolored or swollen & puffy, the skin was still silky soft from applying it last night, and my orbital skin is 97% better!!! The pink/red/purple has gone away, it’s no longer tender/burns to the touch, and you can literally feel it nourishing and tightening your skin. After begging, my husband let me try it on his skin (lol) just to make sure I wasn’t going koo koo. He noticed too! And commented about how soft it is! Yes~Exactly! It makes your skin like SILK! It is a tad oily when you first put it on, but it “settles” quickly into a gentle softness and doubles as a primer before you apply your makeup! It smooths out your pores and makes your skin so smooth. Just this morning was the first time I applied makeup with it and was pleasantly surprised. I have tested it putting it on the top of one hand and nothing on the other, timed an hour and WOWWWWW the difference in undeniable! I personally recommend using it after washing your face before you put anything else on (moisturizer, makeup, etc). As long as you give it 10-15 minutes to let it absorb and settle, you’re good to go with or without makeup! I’m just really glad I found this because that skin is so sensitive and NEEDS this type of care. This product gets a solid 5 stars from me and I’m excited to make it part of my morning and evening routines! : )
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 4
Excellent Formula, but the Product Runs Out Far Too Quickly
Style: MULTIBALM
The balm is genuinely hydrating, smooth, and very convenient to use. It applies beautifully, gives the skin a healthy glow, and works well on dry areas, lips, and the face overall. The texture feels comfortable and nourishing without feeling overly heavy or greasy.
My only major disappointment is the value for the price. Even using a very thin layer across the face once each evening, one stick lasted only about a week. I purchased two of them, and both were exactly the same, so this was clearly not an issue with a defective or partially filled tube.
If you intend to use it regularly over the full face, expect it to run out extremely quickly. I purchased mine during a significant sale, and even at the discounted price I still felt disappointed by how little use I got from it.
Overall, the formula performs well, but the quantity does not justify the regular price for consistent daily use.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Youthful, even skin!
Style: MULTIBALM
I’m loving this stick! I almost sent it back after the first two days but I’m so glad I didn’t. This has really helped me look more refreshed. It’s def helped with shallow lines. Overall it’s made me skin more even. It’s very oily and it sits on your skin so I use it before bed. But I’ve noticed it’s helped balance my skin. I usually get really oily during the day but oddly as oily as this is it keeps my skin from getting oily during the day under my makeup. My makeup looks more even. It’s just overall been great for my skin and it’s made me look younger. Def recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
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