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Synology

Synology 6 bay 2.5" NAS DS620slim (Diskless)

Based on 129 reviews
Condition: Used - Like New
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$487.99
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Availability: Only 2 left in stock, order soon!
Fulfilled by GeekTown (we record product serial number)
Arrives Nov 5 – Nov 9
Order within 13 hours and 52 minutes

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At a glance

Condition
Used - Like New
Size
6-bay; 2GB DDR3L
Style
DS620slim
Dimensions
5.94"D x 6.89"W x 4.76"H
Weight
1.4 kg
Color
white
Material
Metal
Warranty
2 Years
Works with
Server

Features 5

  • Mini-sized yet powerful 6-bay NAS, ready to maximize your work productivity
  • 6 Drive Bays with better RAID flexibility to configure 2. 5 HDDs and SSDs; over 220 MB/s reading and 190 MB/s writing even under encrypted data transmission
  • 2GB DDR3L memory, expandable up to 6GB
  • Dual-channel H. 265/H. 264 4K video transcoding on the fly

Description

Greet the unique and compact DS620slim, ready to boost your productivity at work, and its mini design allows it to blend in any workplace harmoniously. With feature-rich Disk Station Manager (DSM) at your disposal, DS620slim is an ideal file server delivering seamless file synchronization and solid backup solution while securely safeguarding your critical services. DS620slim also comes with 4K video transcoding support, perfect for streaming ultra-high definition media contents. DS620slim is backed up by Synology's 2-year limited .

Specs 17

Brand Synology
Color white
Product Dimensions 5.94"D x 6.89"W x 4.76"H
Size 6-bay; 2GB DDR3L
Material Metal
Number of Items 1
Manufacturer Synology
UPC 846504003167

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 5 – Nov 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Awesome for its size. It’s pretty small
I already own a DS1621+ but this little thing is great. I bought it originally to set up for a family member but they ended up not needing it so now I have an extra NAS to play around with. My one complaint would be simply that I didn’t realize how expensive 2.5” drive storage was. I never really thought about it until getting this. Most 2.5” SATAIII drives are not made for NAS setups. When you start getting in to the higher capacities the price jumps up significantly. While the stock fan isn’t that loud, if you plan to keep this near you like on your desk I would recommend buying the Noctua NF-A8 ULN fan. It makes this thing almost dead silent. It’s VERY easy to install. The stock fan is attached to a panel that just pops right out and you swap the fan easy peasy. Just remove all the little rubber corners on the Noctua so that it fits in easier. While this device “officially” supports 6gb of RAM, you can actually install 16gb and it runs just fine. No errors or even warnings. Just look for 16GB(8GBx2) PC3L-14900S DDR3L Laptop RAM DDR3 1866MHz 1867mhz SODIMM 1.35V Non-ECC. You unscrew the bottom panel and it’s right there. Easy to swap out. If you want to use this for Plex, know that it’s great for that. If you plan to have a decent sized library then it could get a little pricy for you to get a lot of storage with 2.5” drives but what this thing does have going for it is that the internal processor is an Intel Celeron J3355. This processor supports Quick Sync. So this little device can hardware transcode and it’s not too bad at it. So while I wouldn’t use this to replace any hardcore Plex machine you could have, if you are just starting out with Plex or setting up a server for someone else, this is a great device to do that with. You’re not going to replace a server that’s has something like a Quadro P2000 or a RTX A2000 but if you’re not looking to go that hardcore then this is a decent solution. Overall I’d say that if you’re not worried about the cost of storage with 2.5” drives then this is a great little NAS. I would suggest before you purchase you go compare prices of 3.5” drives to 2.5” drives and that may help you decide if this one is right for you. ... show more
Reviewed in the United States on May 23, 2024 by Zerauskire
Nice product
As you would expect from Synology. It works fine and quality is good. It has been running for a while now and I added a UPS to ensure my NAS is not interrupted and can be shutdown safely when battery is low. I would highly recommend this product.
Reviewed in the United States on November 3, 2024 by Chuck Jr. E.
Solid performance and resilient, rarely have I seen any issues, but a better CPU would be nice.
I only give it 4 stars because of the drive chassis’ are cheap and plastic and for the price they could easily be metal. One of mine broke so is forever in the dislodged / pull-out position. I don’t use the Synology applications and run everything in Portainer with Docker Compose files (i.e. “Stacks”) so as far as the OS it did fine for me and rarely when I cannot get to Portainer through Tailscale it is nice to simply use the Dynamic DNS to reset it. My only complaint is the CPU could use a MASSIVE update for the price and still not be a loss proposition for Synology. I’ll probably go with TruNAS and a dedicated server if I ever get beyond the scope of what I am doing. For now this is just easy and works fine. ... show more
Reviewed in the United States on August 2, 2025 by caldera
First Time NAS!
Review Image by Bob
This was my first NAS other than a simple USB drive attached to my router. Setup was a little tricky, but considering that it was my first experience with these kinds of devices it was understandable. So far it has been up and running for a couple of days now. I have an older router so the software that Synology uses could not automatically set it up. This is where the difficulty began. I enjoy tech challenges though. If you are a technophobe, I would suggest something else. I still am having issues with SSL errors when connecting to the NAS and have not yet tracked down the cause. Other than that it has been an incredible introduction to the world of personal cloud storage. I have taken all of my stuff off of the cloud storage service that I was using and put it on this. Once set up all of my photos and videos are backed up to it and easily accessible from my phone. If your worried about manually configuring you router for port forwarding, synology offers "quick connect" service which bypasses all of the setup headaches. I did not that the DIN plug where the unit gets its power from was a little flimsy. ... show more
Reviewed in the United States on March 30, 2025 by Bob
it is compact, reliable, and do search easily
It is VERY reliable and I can search the files easily, unlike the ASUS, which I have to rely on Unix or rely on their "web interface" to search for files. Synology did it right.
Reviewed in the United States on August 25, 2024 by Epsilon Delta
A great self hosting alternative to the major cloud providers
Synology provides apps that provide the functionality (at least the basic functionality) of many standard cloud apps: photos, drive, backup, instant messaging, email, plex, etc. While it's not bug free, it's still pretty good. If you want to stop paying for data storage on someone else's cloud and become a little more independent while retaining a lot of the convenience of the cloud, this is a great option. ... show more
Reviewed in the United States on April 17, 2023 by Thomas
Great performance. Awesome features.
I bought this and only wanted basic NAS and acceptable speeds. On a whim, I pointed this at my two IP cameras and have been very impressed with the security camera features. My only gripe is that the first two camera licenses are free and then it's ~$50 after that. I'm thinking about buying two more licenses and cameras for outdoor recording. PLEX is awesome. The file IO performance is great. This NAS easily saturates my AC1900 wireless network and comes close to being bottlenecked even on gigabit ethernet. TLDR: A bit expensive but completely worth the money. ... show more
Reviewed in the United States on August 21, 2020 by Justin T.
Not disappointed ... DISGUSTED !!!!!
Not disappointed ... DISGUSTED !!!!! Does this actually work ? I have 2 other Synology NAS devices and hey were difficult to setup but this one is a joke. I sent the first one back thinking it was DoA this one is the same. I suppose their support is a Chatbot so that you cannot talk to anyone. I've tried search with their app, by all my dhcp addresses by MAC address . Unfortunately there not many NAS options anymore. Probably because the vendors use AI instead of people ... I guess Amazon doesn't mind filling up their warehouse with rejects ... show more
Reviewed in the United States on March 21, 2026 by Anthony Catenacci
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