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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
Only 5 left in stock, order soon!
Arrives
Saturday, Aug 9
Features
- Accelerated Performance - 177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor
- Maximize Performance - Turbocharge HDD arrays by 20x or more without occupying drive bays using dual built-in M.2 slots for NVMe SSD cache
- Expansion Made Easy - Scale-up on-demand to 18 drives with two DX517 expansion units
- Includes Everything to Protect Your Data - Back up critical data to and from public clouds, Windows PCs and servers, virtual machines, and data on the NAS with Synology Active Backup suite, Hyper Backup, and Snapshot Replication
- Ready for 10GbE - Add in a 10GbE SFP+ or RJ-45 NIC to instantly increase network bandwidth based on your existing infrastructure
Description
Synology DiskStation DS1821+ is a powerful 8-bay network-attached-storage solution designed to store and protect missioncritical data. Designed to tackle increasing amounts of unstructured data, the low-noise, desktop form- factor of the DS1821+ is built for both SOHO and SMB environments. With performance over 110K or 177% higher, 4K random read IOPS than its predecessor, the DS1821+ is fast, with ample room for scalability.
Brand: Synology
Color: Black
Size: 8-bay; 4GB DDR4
Material: Metal
Compatible Devices: Desktop
RAM: 4 GB
Hard Drive: Mechanical Hard Disk
Brand: Synology
Series: DS1821+
Item model number: DS1821+
Hardware Platform: PC
Item Weight: 13.23 pounds
Product Dimensions: 18.2 x 14.4 x 12.5 inches
Item Dimensions LxWxH: 18.2 x 14.4 x 12.5 inches
Color: Black
Hard Drive Interface: Raid
Voltage: 100240 Volts
Manufacturer: Synology
Is Discontinued By Manufacturer: No
Date First Available: December 3, 2020
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Aug 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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Wish I would have bought this instead of the now defunct DBOBO. The device itself is much better with easer and more reliable trays for mounting your drives. The tools and apps are much better and actually includes backup software unlike the DROBO. Backup software works great and was very easy to restore files.
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Reviewed in the United States on November 3, 2024 by David Kent
This is my fourth 8-disk Synology DiskStation since 2014. My last one was a DS1817 which included two 10-gigabit Ethernet (RJ45) ports, and you can bet I aggregated those links on my (very expensive) Ubiquiti US-XG-6PoE and had 20-gigabit between this and my primary FreeNAS server. Well, I wanted to setup a secondary Plex server to offload some from my primary FreeNAS, but the DS1817 didn't have an x86 based chipset, so Plex wouldn't run. I bought the DS1821+ and have been (until today) living off 4-gigabit aggregated connections. However, where the DS1821+ really shines is its fairly capable AMD Ryzen quad-core CPU, which feels light years ahead of the DS1817 in terms of NAS performance and Plex transcoding on the fly. I broke out some of my BluRays and tried pretty much uncompressed dumps to the NAS and playback on Plex and it handled them and seeking really surprisingly well. Very happy with the 1821+. I do wish it came with at least a couple of SFP+ ports for connectivity, but this thing has PCI-E and you can toss in NVMe cache drives, more RAM, and an expansion card for 10-gigabit or more NVMe or both. I opted for an Intel X520-DA2 to get my 10 gigabit connectivity back, and the Synology found it right away with basically no configuration (other than bumping up MTU) necessary. Hooray! So if you're looking for a very capable, small form factor NAS with expansion options, the DS1821+ is so far my very favorite 8-bay I've used so far. Looking forward to what future models hold in store!
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Reviewed in the United States on June 18, 2021 by David R. Chase
He usado este NAS desde el 2021, Lo adquirí para principalmente centralizar todo el sistema de archivos que usamos para realizar trabajos de renderizado. Llego en perfecto estado a Colombia. ( con varias cajas resistentes que realmente denotan un buen empaque por parte de synology ) Fue muy fácil la instalación del sistema operativo y todo lo que se necesita para correr este NAS, hay mucha información esparcida en internet sobre como hacerlo. La interfaz, paquetes y apps de todo el sistema operativo son muy fáciles de usar. Sin mencionar que las apps móviles ayuda mucho también. Los materiales del equipo (plástico y metal) que usan se ven de muy buena calidad. Cosas que no me gustan mucho: todos los accesorios y demás de este equipo son costosos.
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Reviewed in the United States on November 9, 2023 by Gustavo Correa Gustavo Correa
This is an amazing machine. Synology makes a great product. We currently own a 1618+ and a 216+. We wanted to upgrade to the 1821+ 8-bay for our small business, as we save a lot of files because we are in retail and take product photos and videos. Right now, we are really enjoying the faster processor and more storage. For the 1821+ we are going to setup the drives using SHR-2, our 1618 we used Raid 10, but Synology has come a long way with SHR, so we have high expectations.
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Reviewed in the United States on December 24, 2023 by lmcrun19 lmcrun19
Upgraded from a DS1517+. Super easy upgrade. Much faster. More disk space. Otherwise same build and quality. Stock ram is too little. Recommended unofficial upgrades for those on a budget (keep in mind Synology has official supported hardware if that's important to you): - 32gb RAM - might have compatibility warning depending on manufacturer, should be able to find for <$200 shipped total without compatibility warning. Google "DS1821+ and/or DS1621+ ECC Ram Upgrade Options" to see a list of RAM with/without warnings. - 10gbe NIC - Search around for Mellanox ConnectX-3 MCX311A-XCAT LOW PROFILE, it's plug and play, ~$45. A word of caution regarding nvme cache: it's not necessary for most users (including myself - I don't use it!). Average home users running virtual machines may benefit. If you really want it, only chose official Synology nvme cards or Optane for a cache. Consumer nvme cards WILL cause data loss when they inevitably and prematurely die (look it up). DSM7 will improve nvme cache, but I don't recommend using it until the stable release later this year.
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Reviewed in the United States on February 17, 2021 by gumdrop
Very satisfied. I like that the OS has an app store that makes it easy to install and configure services. Support for Docker makes it even more versatile. I installed a Mellanox connect-x 3 network card, but it didn't work until after setup completed. (I used one of the built-in gigabit ports to do initial setup, after which the Mellanox card worked fine. It told me all my drives were not on the compatibility list when I set it up even though they are in the compatibility list online. But they seem to work without issue. I created 2 volumes, one is 4 SSDs and the other is 4 HDDs. The hard disk volume reads and writes at around 750-800 MB/s over SMB. The SSD volume is able to saturate a 10 gigabit connection (over 1 GB/s throughout sustained). The cloud sync tool is very useful. I have 2 cloud storage accounts and they are synced on the NAS so I don't need to install a client on my desktop. So far I'm pretty satisfied.
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Reviewed in the United States on November 11, 2024 by Andrew