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Synology 6 Bay NAS DiskStation - DS1618+ (Diskless)

4.8 out of 5 stars 227 ratings

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  • Powerful and scalable 6-bay NAS optimized for data-intensive work environment. File or folder level data restoration makes data recovery fast and flexible
  • Quad-core, 2.1 GHz CPU with AES-NI support and 4GB DDR4 memory, expandable up to 32GB; Outstanding performance at over 1,550 MB/s reading and 580 MB/s writing
  • Boost IOPS system performance with M.2 SSD cache by using optional M2D17 adapter card
  • PCIe 3.0 slot for optional 10GbE add-on card; Four built-in 1GbE (RJ-45) ports with failover and Link Aggregation support
  • Advanced Btrfs file system offering 65,000 system-wide snapshots and 1,024 snapshots per shared folder.Maximum Single Volume Size:108 TB

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Synology DiskStation DS1618+ NAS Server for Business with Intel 2.1GHz CPU, 16GB Memory, 2TB SSD, 16TB HDD, DSM Operating System, iSCSI Target Ready
Customer Rating 4.8 out of 5 stars (227) 4.6 out of 5 stars (114) 4.8 out of 5 stars (90) 4.6 out of 5 stars (1970) 4.8 out of 5 stars (362) 3.4 out of 5 stars (14)
Price Unavailable $699.99 $1,573.90 $369.99 $469.99 $1,999.00
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Aventis Systems
Hard Disk Size 12.0 TB 0 GB 40.0 TB 1 16.00 TB
Hardware Interface USB 3.0, eSATA Solid State Drive SATA 6.0 Gb/s USB 3.0 eSATA Solid State Drive, eSATA
Item Dimensions 11.1 x 9.29 x 6.54 inches 9.17 x 9.06 x 6.54 inches 13 x 12 x 12 inches 8.78 x 7.83 x 6.54 inches 9.76 x 9.17 x 6.18 inches 19 x 17 x 8 inches
Item Weight 11.13 lbs 10.40 lbs 14.12 lbs 5.03 lbs 8.62 lbs

From the manufacturer

DS1621xs+
DS1618+ DS1819+ DS2419+ DS1621xs+
Drive Bays 6 8 12 6
Maximum Drive Bays with Expansion Unit 16 18 24 16
Maximum Raw Capacity with Expansion Units 192 TB (12 TB HDD x 16) (Capacity may vary by RAID types) 252 TB (112 TB + 14 TB drive x 10) (Capacity may vary by RAID types) 384 TB (192 TB + 16 TB drive x 12) (Capacity may vary by RAID types) 96 TB (6x16 TB Drives) (Capacity may vary by RAID types)
Hot Swappable Drive
CPU Quad Core 2.1 GHz Quad Core 2.1 GHz Quad Core 2.1 GHz Quad Core 2.2 (base) / 2.7 (turbo) GHz
1GbE LAN Ports 4 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support) 4 (with Link Aggregation / Failover support) 2 (with Link Aggregation / Failover support) and 1 x 10GbE LAN Port
System Memory 4 GB DDR4 non-ECC SODIMM 4 GB DDR4 non-ECC SODIMM 4 GB DDR4 non-ECC SODIMM 8 GB DDR4 ECC SODIMM
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 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
USB 3.0 Port 3 4 2 3

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What's in the box

  • DS1618+ main unit x 1
  • Quick Installation Guide x 1
  • Accessory pack x 1
  • AC power cord x 2
  • RJ-45 LAN cable x 2
  • Product information

    Technical Details

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    Additional Information

    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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    Product Description

    Synology Disk Station DS1618+ is a versatile, compact, yet powerful 6-bay NAS equipped with quad core processor, designed for small- and medium-sized businesses. It comes with advanced computing applications to meet businesses' demands and supercharges your storage with the optional M.2 SSD adapter card for dual SSD cache drives. DS1618+ is ideal to serve as a centralized file server for simplifying data management and protecting critical assets. Synology DS1618+ is backed with Synology's 3-year limited warranty. Operating Temperature - 0°C to 40°C (32°F to 104°F)

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    227 global ratings

    Top reviews from the United States

    Reviewed in the United States 🇺🇸 on October 22, 2018
    Customer image
    5.0 out of 5 stars An AMAZINGLY fast NAS
    Reviewed in the United States 🇺🇸 on October 22, 2018
    I'm not going to talk about the great Operating System in Synology NAS, it's the same in all Synology Consumer NAS. My older DS211j, DS211 and DS411 still get both security and OS updates at the same time. Two thumbs up for the continued support of older models, with the notable exception of not supporting btfrs in the DS411 which I now use for backup. WHY? All the necessary drivers are included in the respective DSM.

    I'm only going to talk about transfer speeds which is what you may want to compare when choosing between different Synology models.

    I purchased the DS1618+ to upgrade from my old and slow DS411. Anything I wanted to do with the DS411 spiked CPU usage to 99%, even simple file transfers (4 disk SHR-1 configuration), which topped at about 12MB/s.
    Opening and closing apps was also terribly slow.

    On the DS1618+ I used 3 older drives (16000 to 36000 hours) from the DS411 plus 2 new drives, all Western Digital RED 4TB in a 5x 4TB SHR-2 configuration and a single Volume (12000GB total usable space) for added HDD failure robustness, since I've had 2 drives fail within 1 month on the DS411 a few years back and was barely able to finish rebuilding after the first drive failed when the second one (different make and model) failed too. Plus RAID only helps you so far, only against HDD total failure, not with corruption or bitrot.

    I was weary of the transfer speeds I would be able to achieve in this 5xHDD SHR-2 configuration (double parity means more CPU usage), since when I moved from my 2-bay DS211 with 2 HDD in SHR-1 to my 4-bay DS411 with 4 HDD in SHR-1, transfer speeds dropped from about 36MB/s to about 12MB/s due to the higher CPU usage. Lately this has been a pain since now I'm processing large amounts of drone images stored on my NAS.

    But I was blown away: Transfer speeds are as fast as Gigabit ethernet allows you to. I never thought I would see 99% usage of my GbE PC connection. Both writing and reading from the NAS to my Windows 7 x64 PC SSD is about 100MB/s which I tested with a single 16.6GB movie file.

    Since I had one drive slot left (Disk 6), I used it to put an older 64TB SSD I had laying around and enabled it as SSD cache. No need to buy the expansion card. However when using only one SATA SSD, cache is limited to read operations. But as you can see from the attached image, the sustained writing speed of 110MB/s was entirely done on the 4TB HDD. CPU usage stayed fixed at 30% during the entire transfer. (The difference between individual disk write speed is just because it shows the instant write speed, not the mean write speed which usually was the same between Disks 1 to 5).

    Now I'm considering adding a second GbE port to my PC, since this NAS has 4 GbE port which support link aggregation.

    I'm extremely pleased with this purchase. Plus it has INTERNAL power transformer, so there is no extra bulky external brick whose power cable comes out easily when reaching behind the NAS as the older models I have.
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    26 people found this helpful
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    Reviewed in the United States 🇺🇸 on July 18, 2022
    Reviewed in the United States 🇺🇸 on October 1, 2020
    Reviewed in the United States 🇺🇸 on May 12, 2020
    2 people found this helpful
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    Top reviews from other countries

    ted g
    5.0 out of 5 stars it works!
    Reviewed in the United Kingdom 🇬🇧 on October 20, 2018
    Michael Otto
    5.0 out of 5 stars Consistent, high performance storage appliance
    Reviewed in Canada 🇨🇦 on May 26, 2020
    2 people found this helpful
    Report abuse
    FG
    5.0 out of 5 stars Just awesome...
    Reviewed in Australia 🇦🇺 on January 26, 2019
    4 people found this helpful
    Report abuse
    Pat
    5.0 out of 5 stars Capable of Massive Storage
    Reviewed in Canada 🇨🇦 on November 13, 2018
    One person found this helpful
    Report abuse
    SquidSurprise
    5.0 out of 5 stars Best NAS for prosumers that is easy to use.
    Reviewed in Canada 🇨🇦 on August 3, 2020