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Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4

4.8 4.8 out of 5 stars 566 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Synology
Size 5-bay; 8GB DDR4
Item Weight 9.8 Pounds

About this item

  • Capacity-scalable NAS with SSD Cache Acceleration Capability. Compatible Drive Type-3.5 inch SATA HDD, 2.5 inch SATA HDD, 2.5 inch SATA SSD, M.2 2280 NVMe SSD. "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. Each internal volume (may consist of multiple drives) is expandable up to 108TB
  • Flexibly scale up to fifteen drives to increase storage capacity as demand grows
  • Built-in M.2 2280 NVMe SSD slots permit cache acceleration without occupying storage drive bays
  • Back up critical data and reduce Recovery Time Objective (RTO) with Snapshot Replication
  • Accelerated Application Performance Average 16% performance boost to photo indexing and other computing-intensive operations, as well as database response time
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Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4
Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4
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PriceCurrently unavailable.$296.99$185.99$577.72$799.99$699.99
Delivery
Get it as soon as Saturday, May 18
Get it as soon as Saturday, May 18
Get it as soon as Saturday, May 18
Get it May 15 - 20
Get it as soon as Saturday, May 18
Customer Ratings
Tech Support
4.5
4.2
3.8
4.0
4.3
Storage Capacity
4.8
4.6
4.3
4.7
User interface
4.7
4.5
4.1
4.0
Easy to use
4.5
4.4
4.2
4.1
Value for money
4.7
3.7
4.0
4.1
Sold By
Amazon.com
Amazon.com
Amazon.com
Holiday Electronics Deal
Amazon.com
size
5-bay; 8GB DDR4
DS224+
DS223j
4 Bay
8GB DDR4 RAM
1U
compatible devices
Laptop, Smart Phone, Desktop
Desktop, Laptop, iPhone, Android
Laptop, Desktop, Smartphone
Server, Desktop, Smart Phone
weight
9.8 pounds
1.3 kilograms
0.87 kilograms
7.7 pounds
13.28 pounds

Product Description

Synology DiskStation DS1520+ is an ideal network-attached storage solution, suitable for small office and IT enthusiasts. 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, DS1520+ lets you start small and expand storage capacity with the Synology DX517 as your data grows.

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Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4

Synology NAS DiskStation DS1520+ (Diskless), 5-Bay; 8GB DDR4


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From the manufacturer

DS1520+
1
Scalable NAS for small office and IT enthusiasts

Synology DS1520+ is an ideal NAS solution 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. Scalable storage design lets you start small and expand storage capacity with Synology DX517 as your data grows.

Accelerate demanding applications

A more powerful CPU speeds up computing-intensive applications. Easily categorize your photo memories, smoothly manage files across computers and mobile devices, and enjoy blazing fast web applications.

  • 4-core 2.0 GHz, burst up to 2.7 GHz
  • 2 x built-in M.2 2280 NVMe SSD slots
  • Two USB 3.0 ports
  • Expand up to 15 drives with expansion unit
  • *Performance figures may vary depending on the environment, usage, and configuration

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File sharing and syncing

With comprehensive support for network file sharing protocols — like CIFS, AFP, NFS, FTP, and more — DiskStation allows the entire office to centralize files and collaborate on projects. Or synchronize files across multiple devices or even across several locations so remote teams can work together.

Your own personal multimedia server

DiskStation allows you to stream 4K videos to high-definition TVs, digital media players, mobile handsets, and computers, making it easy to watch your entire multimedia library without having to install a 3rd party player.

Bulletproof backup

Maintain control of your data and ensure your files are safe with Synology. We provide secure, reliable, and affordable solutions that make it easy to backup files for all your devices and protect yourself from accidental data loss.

24/7 smart security solution

Surveillance Station delivers intelligent monitoring and video management tools such as managing multiple IP cameras with live streaming, integration of I/O modules and more to help safeguard all the important places in your life.

NAS performance backed by Synology drives - SSD, HDD, and M.2.
DS220+ 420 720 920 DS1520+ Synology DiskStation DS1522+ 5-bay NAS
Synology DS220+ Synology DS420+ Synology DS720+ Synology DS920+ Synology DS1520+ Synology DS1522+
Customer Reviews
4.7 out of 5 stars
7,884
4.8 out of 5 stars
185
4.8 out of 5 stars
939
4.7 out of 5 stars
7,884
4.8 out of 5 stars
566
4.7 out of 5 stars
7,884
Price $383.63 $545.61
Drive Bays 2 4 2 4 5 5
Maximum Drive Bays with Expansion Unit 2 4 7 9 15 15
Maximum Internal Raw Capacity 32 TB (16 TB drive x 2) (Capacity may vary by RAID types) 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) 32 TB (16 TB drive x 2) (Capacity may vary by RAID types) 64 TB (16 TB drive x 4) (Capacity may vary by RAID types) 80 TB (16 TB drive x 5) (Capacity may vary by RAID types) 80 TB (16 TB drive x 5) (Capacity may vary by RAID types)
CPU 2-core 2.0 (base) / 2.9 (burst) GHz 2-core 2.0 (base) / 2.9 (burst) GHz 4-core 2.0 (base) / 2.7 (burst) GHz 4-core 2.0 (base) / 2.7 (burst) GHz 4-core 2.0 (base) / 2.7 (burst) GHz 2-core 2.6 (base) / 3.1 (turbo) GHz
Hardware Encryption Engine (AES-NI)
Memory 2 GB DDR4 (Expandable up to 6GB) 2 GB DDR4 (Expandable up to 6GB) 2 GB DDR4 (Expandable up to 6GB) 4 GB DDR4 (Expandable up to 8GB) 8 GB DDR4 8 GB DDR4 ECC (Expandable to 32GB)
RJ-45 1GbE LAN Port 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support) + 10GbE Optional Upgrade
USB 3.0 2 2 2 2 2 2
Compatible Drive Type 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD, M.2 2280 NVMe SSD

From the brand

Customer reviews

4.8 out of 5 stars
4.8 out of 5
566 global ratings

Customers say

Customers like the ease of setup and use of the system cabinet. For example, they mention it's easy to set up and use, with very intuitive apps. They appreciate the quality, performance, and noise level of the product. For instance, they say it'll never slow down or issue, it'd be a great addition to any home or office network, and it're quiet.

AI-generated from the text of customer reviews

21 customers mention21 positive0 negative

Customers find the system cabinet easy to setup and use. They mention that the Synology DSM is incredibly easy to use, and the intuitive apps make it easy to set up and use VMs. They also appreciate the new style, and mention that ram and nvme upgrades are easy.

"...Setup was simple and fast. Install the drives, let it format and run it's integrity check. While the check is running, you can use it...." Read more

"...the DSM (Synology OS based on Linux) is extremely user friendly and intuitive with lots of options and tools built in: reverse proxy, firewall, Let..." Read more

"Ease to setup and use. I have this setup loaded with 4tb drives on my desk at work for software backups...." Read more

"Super simple installation. Used 5 Seagate IronWolf 8GB drives setup as RAID-6. Two GigE bonded into my switch. Great throughput!..." Read more

21 customers mention21 positive0 negative

Customers are satisfied with the quality of the system cabinet. They mention that it is a great device, works great for them, and is an excellent NAS solution. Some say that it runs like a champ on this system.

"...5. Plex: Runs like a champ on this system. I use it to stream media to iOS devices and the AppleTV...." Read more

"...Built in Synology packages are great dupes for already popular apps out there, but having Docker & Tailscale as packages is by far the winner for..." Read more

"...Update: 11/18/2020Replacement unit works perfectly. Up and running in no time.Synology make a great product.." Read more

"Synology NAS is great! I like the simplicity of the OS and the amount of support and videos online on setting it up to do whatever you need...." Read more

13 customers mention10 positive3 negative

Customers like the performance of the system cabinet. They mention that it has great throughput, is fast, and has never had a slowdown or issue. They also say that it is dependable, easy to use, and solidly built.

"...2. It's fast. Compared to my old system, it's probably 10X faster on file transfers...." Read more

"...The NAS in general is solidly built, but not too heavy...." Read more

"...Two GigE bonded into my switch. Great throughput! Was backing up my three PCs within about an hour from unboxing...." Read more

"...It works great for that, except occasionally on 4K direct streams it stutters. If you rewind or fast forward it usually resets itself...." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the noise level of the system cabinet. They mention that it's quiet.

"...1. It's quiet. I assume a lot of this to do with the drives, but the ones I chose and this unit are whisper quiet...." Read more

"...The NAS is in my living room and, so far, it's been quiet and I haven't noticed any noise...." Read more

"...I am amazed how easy it is to use. Nice form factor, quiet and unassuming. I have used other NAS systems, and Synology by far as been the best...." Read more

3 customers mention3 positive0 negative

Customers appreciate the value of the system cabinet. They say it's worth the initial investment and the best NAS for the money. Customers also mention that it'll be a perfect small business solution.

"...Rich set of flexible roles and features. Worth the initial investment to max out the RAM and Cache." Read more

"Small investment, long term reward..." Read more

"Best NAS for the money..." Read more

Great system, super happy with it
5 Stars
Great system, super happy with it
Super simple installation. Used 5 Seagate IronWolf 8GB drives setup as RAID-6. Two GigE bonded into my switch. Great throughput! Was backing up my three PCs within about an hour from unboxing.The differences between synology drive, drive sync and backup to9k a bit to figure out but was able to onky using a couple of youtube video how tos.The performance accessing the NAS drive folders is remarkable. I have certainly thrashed the system as I had around 4TBs of data lying around that I wanted backedup.User interface is straightforward though may be a bit of a learning curve for someone completely new to NAS.In all smary I am super pleased with this system! And the piece of mind knowing data is protected feels great.
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Top reviews from the United States

Reviewed in the United States on January 31, 2021
I purchased this DS1520+ as a diskless system. I also purchased Ironwolf drives along with it and later followed up with an Ironwolf M.2 cache card that I installed a few days later.

Setup was simple and fast. Install the drives, let it format and run it's integrity check. While the check is running, you can use it. I come from a much older NAS, a ReadyNAS NV+, that was definitely showing its age, but served well for over a decade.

1. It's quiet. I assume a lot of this to do with the drives, but the ones I chose and this unit are whisper quiet. It sits less then 3 feet away on my desk, and the most noise it makes is a barely perceptible rumbling noise when the disk access is heavy.
2. It's fast. Compared to my old system, it's probably 10X faster on file transfers. Yes, it's noticeable that it's not a local disk, but I cannot complain at all about the speed.
3. Easy to setup and use. A basic install of disks and initial setup of the DSM software on it is pretty easy to manage - and it's a tool less install too. For setup, you can dig into it and make it much more complex, but setting up a plex server was simple enough and docker - well that depends on what you are installing. Only warning I have here is be careful how you set up networking. They have a tool that does a security check that warns you of potential problems, but you do not want to expose it unnecessarily to the Internet.
4. SSD Cache helps. It learns eventually what files are most accessed. It's useless for streaming movies - the disks are adequate enough for that - but the metadata comes quickly off the system. Make sure to tell it in the SSD configuration to stream large files off the disks to preserve cache space. I installed this about a week after getting the unit. Since I only have one M.2 card, the cache is for NAS reads only - you'll need two cards for a read-write cache. Turn it off, flip it over and plug it in. Flip it over and turn it on again. Then tell it you want to set it up a SSD and a few clicks later, it's done.
5. Plex: Runs like a champ on this system. I use it to stream media to iOS devices and the AppleTV.

The only complaint I have is that perhaps I should have ordered larger drives to put in it, but that's on me. 2 drive fault tolerance takes huge chunk out of your storage space. After migrating all my data, it was about 40% full. That's about 10+ years or so worth of accumulated data, so it may not be that bad.

My setup:
Synology DS1520+ w/stock 8GB RAM
5x Seagate Ironwolf 4TB drives, formatted SHR w/2 drive fault tolerance. 3.64TB (formatted space) x5 = 18.2TB, 10.9TB useable for storage.
Seagate Ironwolf 480GB M.2 cache card.
17 people found this helpful
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Reviewed in the United States on May 3, 2022
This is the first NAS I've ever bought and I'm pleased with my choice. Lots of guides out there but the DSM (Synology OS based on Linux) is extremely user friendly and intuitive with lots of options and tools built in: reverse proxy, firewall, Let's Encrypt certs, DNS server, etc. I have a tech background, but even if I didn't, I believe it'd be rather simple to click around or find an easy guide to walk me through the basics. Built in Synology packages are great dupes for already popular apps out there, but having Docker & Tailscale as packages is by far the winner for me.

Set-up was easy, just open up the NAS and plug it in. Installing the drives (assuming you didn't have to shuck) is also a breeze and they provide extra mounting screws (although I didn't need them), along with setting up the SHR RAID. Make sure you lock your drives or they might fall out. The NAS is in my living room and, so far, it's been quiet and I haven't noticed any noise.

The NAS in general is solidly built, but not too heavy. I bought a USB UPS along with it and the NAS recognized it immediately, and even emails me when backup power is getting used. It's actually how I found out we had a power outage when I was away from the house.

I'll definitely buy another Synology in the far, far future when I decide to upgrade and keep this one as a backup NAS.
4 people found this helpful
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Reviewed in the United States on November 12, 2020
I love Synology devices and I wouldn't hesitate to recommend the product based on past experience. This is my third personal device and I've deployed two others in small businesses that I assist with tech support. I'm not professing to be an IT guru (in fact, one of my pet peeves are reviews that start with "Let me start by saying...." ) just stating that I've had a reasonable amount of experience with Synology devices.

That said, I had nothing but problems setting this device up from the minute I plugged it in...don't stop reading and buy another product!

I started with three brand new identical NAS grade drives all of which were recognized and showed "Good" in the DSM interface. The problems began when the device started running the parity check. It would get to between 1-1.5% then go back to zero...two or three times. Finally, reset the device, re-formatted the drives and started over. Things seemed to be running normally for about 20 hours until the consistency check got to 70% then just seemed to stop then and stayed that way overnight. Drives still all said they were good and I could still access the volume. Gave up, packed the unit up and returned to Amazon...who probably now think I'm insane because I just re-ordered the same unit today. After returning the 1520, I bought a different (well known) brand, loaded my drives and powered the unit on. After doing the basic system config the unit almost immediately threw an error on one of the drives. Put the drive in my computer, ran tests, all passed. Put the drive back in the NAS, started over...same drive error. Luckily I had a 4th identical drive, replaced the one giving the error and voila...everything worked perfectly. Why the first DS1520 didn't pick up my drive error (although in all fairness, neither did my PC or the disk utility) is beyond me. The thing I've always like about the DSM's are their ability to "early warn" disk issues. So, I re-ordered the DS1520+ confident that all the issues were related to the bad disk. To be honest, my first thought was a disk issue despite it not being reported.

I should have listened to myself and swapped the discs one at a time to rule it out. Got the disc replaced under warranty and Seagate sent me a follow up that the RMA'd drive failed their tests and showed inconsistent results. I feel bad for returning a product to Amazon that may or may not have been faulty but I didn't want to get stuck with a $700 paperweight.

Many thanks to Amazon for their stellar return policy.

Update: 11/18/2020

Replacement unit works perfectly. Up and running in no time.
Synology make a great product..
30 people found this helpful
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Reviewed in the United States on November 9, 2023
Ease to setup and use. I have this setup loaded with 4tb drives on my desk at work for software backups. Moved our system disks over to iso's so we have a running revision history to software. We now have a software history that is more complete then some manufacturers we handle and can better assist customers.

Top reviews from other countries

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Kindle Customer
5.0 out of 5 stars My second Synology, a beast.
Reviewed in Canada on February 7, 2021
After years with a DS710+, I wanted more storage room for my photos. This unit was on the Warehouse Deal at the same price of a 920+. The description said it was lightly damaged on the front but I can't see where! This unit seem to be brand new to me.
I added 2 Ironwolf NAS 10Tb (on SHR), I plan to add 2 more in a near future to backup my PC, phone and laptop.
I also went to the Beta of DSM 7 (to be released summer 2021).
Really nice features and fast but don't do it if you have important data, it's still beta and not all apps are currently on package center.
I installed Docker and PiHole, so no more annoying ads.
2 people found this helpful
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Shival
5.0 out of 5 stars Loved it and its working flawlessly
Reviewed in India on August 24, 2022
The media could not be loaded.
 Best device to setup space on network i have used 3 ironwolf 8tb disks and the synology software is so easy to use and using youtube i myself set it up in just 2 days

Works like a charm
Customer image
Shival
5.0 out of 5 stars Loved it and its working flawlessly
Reviewed in India on August 24, 2022
Best device to setup space on network i have used 3 ironwolf 8tb disks and the synology software is so easy to use and using youtube i myself set it up in just 2 days

Works like a charm
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Rainer
5.0 out of 5 stars Daten zentral bereitstellen und viele Apps
Reviewed in Germany on April 8, 2021
Synology für mich erste Wahl. Danach würde QNAP folgen, dann die anderen. Warum 5 Bay? Wer nicht gerade 8 TB Datenvolumen braucht, kann sich hier viel Ausfallsicherheit gönnen inklusive Hotspare (Spring von alleine ein, wenn Platte defekt ist). Über die Apps habe ich eine DSM im Docker laufen. Die Rechenpower der Synology reicht locker aus.

Ja, mit den Platten zusammen (habe auch die SSD Ramerweiterung) zusammen fast 2T€ aber jetzt für die nächsten Jahre Ruhe und die Daten sind sicher. Da dies mein wichtigster Punt war, läuft jede Nacht noch eine Vollsicherung (Hyperbackup) auf eine an das Synology angeschlossene USB3-Festplatte. Diese ist nur der Synology selbst sichtbar. Ein Verschlüsselungstrojaner könnte die Datensicherung also nicht erreichen...
One person found this helpful
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01
5.0 out of 5 stars クラウドサービスをやめてこれに乗り換えるべき
Reviewed in Japan on March 10, 2022
以外とセットアップは簡単、
素人でもYouTube のチュートリアルをみれて誰でもすぐに使用できるかと。
データ転送、保管などはすごくいいと思います。セキュリティ面はよくわかりませんが。。。
2 people found this helpful
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Carlos Mateos
5.0 out of 5 stars Buen precio, cubre mi expectativa
Reviewed in Mexico on February 18, 2021
El producto cumple completamente mi expectativa de acuerdo a los descrito, con excelente soporte y gran variedad de aplicaciones. Pero lo mejor es que lo encontré en excelente precio en Amazon, incluso más barato que modelos inferiores (4 bahias, 4 Gb, DS+) y comparado a otros vendedores en línea.
2 people found this helpful
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