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Synology 6 bay NAS DiskStation DS1621xs+ (Diskless)

4.7 4.7 out of 5 stars 108 ratings

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Brand Synology
Color Black
Product Dimensions 13"D x 12"W x 12"H
Size 6-bay; 8GB DDR4
Compatible Devices Desktop

About this item

  • Combine built-in 10GbE and optional high-speed NIC for over 3,100 MB/s sequential read performance
  • Built-in M.2 2280 NVMe SSD slots permit cache acceleration without using storage drive bays
  • Flexibly scale up to 16 drives to increase storage capacity as demand grows
  • Back up critical data and reduce your Recovery Time Objective (RTO) with Snapshot Replication
  • Use virtualization storage tools to complete your SAN or run virtual machines on a full-featured hypervisor

Customer ratings by feature

Tech Support
5.0 5.0
Storage Capacity
5.0 5.0
User interface
4.9 4.9
Noise level
4.3 4.3

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Synology 6 bay NAS DiskStation DS1621xs+ (Diskless)
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PriceCurrently unavailable.$296.99$369.99$589.00$443.99$659.00
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Tech Support
5.0
4.2
4.5
4.0
3.9
3.8
Storage Capacity
5.0
4.7
4.8
4.7
4.3
5.0
User interface
4.9
4.5
4.7
4.1
4.1
4.1
Value for money
4.0
4.6
4.4
3.9
3.7
3.9
Easy to use
4.4
3.8
4.1
4.2
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
size
6-bay; 8GB DDR4
DS224+
DS423
4 Bay
6-bay; 2GB DDR3L
9-bay
hardware interface
sata 6 0 gb
esata, pci, solid state drive
usb
ethernet
sata 6 0 gb, usb
compatible devices
Desktop
Laptop, Smart Phone, Desktop
Desktop, Laptop, Server, Smart Phone
Server
assembly required
weight
14.12 pounds
1.3 kilograms
2210 grams
1.4 kilograms
7.9 pounds

From the manufacturer

1621xs
19
High-end scalable NAS in desktop form factor

DS1621xs+ is a high-end NAS with server-class performance in a 6-bay desktop form factor. The built-in M.2 SSD cache slots, 10GbE port, expandable memory, and scalable storage design allow you to boost the performance of your NAS, making it ideal for small and medium-sized businesses that need an efficient and space-saving storage solution.

Supercharge your storage with speedy performance

DS1621xs+ comes with built-in M.2 SSD cache slots capable of providing I/O response speeds 20 times faster than hard drives without occupying front drive bays. The built-in 10GbE port provides fast data transmission and can be bonded with an additional network interface card for higher network bandwidth.

  • Xeon D-1527 quad-core 2.2 GHz CPU
  • 8 GB DDR4, expandable up to 32GB
  • Over 3,100 MB/s sequential read
  • Dual M.2 2280 SSD supporting NVMe SSDs
  • Built-in 10GBASE-T for bandwidth intensive environments

File sharing and syncing

With comprehensive support for all major file sharing protocols — like CIFS, AFP, NFS, FTP and more — DiskStation lets you centralize files in one place and access them using any device. Take files on the road or easily share them with other people, thanks to Synology's easy file sharing and syncing software.

Bulletproof data backup

Ensure data remains safe by backing up your computers, servers, and virtual machines to DiskStation, and defend yourself from human-error or ransomware with the multi-version backup. Finally, avoid disaster with the ability to easily back up DiskStation to an offsite location or to any major cloud service.

Virtualization ready

With support for VMware, Citrix, and Microsoft Hyper-V, DiskStation serves as a seamless storage solution for virtualization environments. Additionally, Synology’s Virtual Machine Manager also lets you set up and run various virtual machines directly on DiskStation, including Windows, Linux, and Virtual DSM.

Smart video surveillance

Make your own video surveillance hub. Surveillance Station helps you protect your home or business by offering the ability to manage multiple network cameras, check live camera feeds from anywhere with the mobile app, catch suspicious incidents quickly with intelligent alerts, and easily find relevant recordings.

Performance backed by Synology HDD, M.2 NVMe, and SSD drives
Synology DiskStation DS1621+
DS1621xs+ DS1621+ DS1821+ DS2422+
Customer Reviews
4.7 out of 5 stars
108
4.8 out of 5 stars
311
4.7 out of 5 stars
299
4.6 out of 5 stars
68
Drive Bays 6 6 8 12
Maximum Drive Bays with Expansion Unit 16 16 18 24
Maximum Raw Internal Capacity 108 TB (6x18 TB Drive) (Capacity may vary by RAID types) 108 TB (6x18 TB Drive) (Capacity may vary by RAID types) 144 TB (8x18 TB Drive) (Capacity may vary by RAID types) 216 TB (12x18 TB Drive) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 288 TB (16x18 TB Drives) 288 TB (16x18 TB Drives) 324 TB (18x18 TB Drives) 432 TB (24x18 TB Drives)
CPU Quad Core 2.2 (base) / 2.7 (turbo) GHz Quad Core 2.2 GHz Quad Core 2.2 GHz Quad Core 2.1 GHz
1GbE LAN Ports 2 (with Link Aggregation / Failover support) and 1 x 10GbE LAN Port 4 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support)
System Memory 8 GB DDR4 ECC SODIMM 4 GB DDR4 ECC SODIMM 4 GB DDR4 ECC SODIMM 4 GB DDR4 non-ECC SODIMM
PCIe Expansion 1 x Gen3 x8 slot (x8 link) 1 x Gen3 x8 slot (x4 link) 1 x Gen3 x8 slot (x4 link) 1 x Gen3 x8 slot (x4 link)

Product information

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Synology 6 bay NAS DiskStation DS1621xs+ (Diskless)


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Product Description

Synology DiskStation DS1621xs+ is a highend, high-performance NAS solution that supports every aspect of your business with powerful data management, collaboration, and networking tools topped off with well-rounded data protection mechanisms in a 6-bay desktop chassis. Built-in M.2 SSD cache slots, 10GbE connectivity, scalable storage, and Synology 5-year limited warranty make DS1621xs+ a future-proof choice to build onpremises cloud infrastructure.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
108 global ratings

Customers say

Customers like the power, performance, ease of setup, quality, and ethernet of the system cabinet. They mention that it runs fast, has enough horsepower for some really decent VMs, and that the setup process was smooth and trouble-free. They also appreciate the 10Gb Ethernet and room for more disks.

AI-generated from the text of customer reviews

10 customers mention10 positive0 negative

Customers are impressed with the power of the system cabinet. They say it runs fast, transfers gigabytes to it very quickly, and has enough horsepower for some really decent VMs. The NAS and their machines' backups are dramatically faster, and it serves as a decent Plex server. Customers also mention that the synchronization is virtually instantaneous, and the 1621xs+ is decently powered.

"...Cloud made setting this up super easy and the synchronization is virtually instantaneous when there are changes or new files...." Read more

"This is an excellent NAS. It runs really well and is much faster than my 8 year old Synology NAS. It does everything I ask...." Read more

"...The 1621xs+ is decently powered and will allow you to get a lot of usability...." Read more

"...It even serves as a decent Plex server, but don’t expect it to play 4K videos...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the performance of the system cabinet. They mention that it runs really well, is much faster than their previous NAS, and offers strong performance. Some say that it's a fantastic machine and offers powerful performance. Overall, most are happy with the product's performance and functionality.

"...you're using a desktop operating system in your browser and everything just works, I haven't run in to any problems with it at all...." Read more

"This is an excellent NAS. It runs really well and is much faster than my 8 year old Synology NAS. It does everything I ask...." Read more

"This is an excellent NAS, and so much more, for small to medium size enterprise organizations...." Read more

"...The whole setup process was smooth and trouble-free, and the unit has great performance. You can pay a LOT less, but then you get a lot less too." Read more

5 customers mention5 positive0 negative

Customers find the setup process of the system cabinet to be easy and trouble-free. They mention that the Synology Cloud makes setting up the cabinet super easy, and the synchronization is virtually instant.

"...Synology Cloud made setting this up super easy and the synchronization is virtually instantaneous when there are changes or new files...." Read more

"...The whole setup process was smooth and trouble-free, and the unit has great performance. You can pay a LOT less, but then you get a lot less too." Read more

"Extremely easy to configure and get going on. With 10g between the NAS and my machines my backups are dramatically faster...." Read more

"...The setup was fairly easy through Synology's browser based access to tech support and direct set up via browser...." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the system cabinet. They mention that the DSM web interface is the absolute best web interface they've ever seen anywhere, the software is a joy to use, and SSH into the NAS and issue commands directly is great.

"...Synology have done an excellent job of making the UI friendly enough for average users to be able to use it, but also flexible enough for power..." Read more

"...Synology has a great software platform and when I bought this DSM 7.0 was already out...." Read more

"...LOVE IT! Oh yeah, the DSM 7.0 software is a joy to use as well." Read more

"...And this NAS, you pay a lot. So what do you get?- Near-foolproof UI- Responsive support-..." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the ethernet of the system cabinet. They mention that it comes with 8GB of RAM, ECC memory, NVMe SSD cache, 10Gb Ethernet, and room for more disks.

"...get something that's compact, relatively low electricity use, has lots of storage, and can run VMs and docker containers...." Read more

"...It comes with 8GB of RAM. I paid over a rack and a half so one would expect it to come ready to rock. No sir, request denied...." Read more

"...The DS1621xs+ is everything I was looking for: better CPU, ECC memory, NVMe SSD cache, 10Gb Ethernet and room for more disks...." Read more

Amazing NAS upgrade. I had no idea what I was missing until I upgraded to this!
5 Stars
Amazing NAS upgrade. I had no idea what I was missing until I upgraded to this!
I had an original Drobo 5N that I had been using since 2014. Unfortunately the Drobo stopped adding new space as I upgraded the drives and support was basically nonexistent and suggested to 'transfer data off the NAS and restore'. That's not very practical with 22TB of Data.So I gave Synology a try. This little beast has completely changed my impression of NAS's. Synology has a great software platform and when I bought this DSM 7.0 was already out. I'm really impressed at all of the great software features that are built into the Synology DSM, and blown away by learning how to run other programs safely in Docker.I can't recommend this product enough to anyone who has a NAS and wants to upgrade to a better NAS. The 1621xs+ is decently powered and will allow you to get a lot of usability. The 10Gbe port is blazing fast if you have a network that can support it.If you are coming from the Drobo platform like me, you will be blown away at the awesome functionality of the Synology software.
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Top reviews from the United States

Reviewed in the United States on February 28, 2023
10 people found this helpful
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Reviewed in the United States on March 2, 2022
10 people found this helpful
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Reviewed in the United States on April 4, 2022
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5.0 out of 5 stars Amazing NAS upgrade. I had no idea what I was missing until I upgraded to this!
Reviewed in the United States on April 4, 2022
I had an original Drobo 5N that I had been using since 2014. Unfortunately the Drobo stopped adding new space as I upgraded the drives and support was basically nonexistent and suggested to 'transfer data off the NAS and restore'. That's not very practical with 22TB of Data.

So I gave Synology a try. This little beast has completely changed my impression of NAS's. Synology has a great software platform and when I bought this DSM 7.0 was already out. I'm really impressed at all of the great software features that are built into the Synology DSM, and blown away by learning how to run other programs safely in Docker.

I can't recommend this product enough to anyone who has a NAS and wants to upgrade to a better NAS. The 1621xs+ is decently powered and will allow you to get a lot of usability. The 10Gbe port is blazing fast if you have a network that can support it.

If you are coming from the Drobo platform like me, you will be blown away at the awesome functionality of the Synology software.
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4 people found this helpful
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Reviewed in the United States on January 23, 2023
One person found this helpful
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Reviewed in the United States on December 30, 2021
One person found this helpful
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Top reviews from other countries

Greg
5.0 out of 5 stars Fast and reliable
Reviewed in Canada on June 30, 2021