Top 10 Synology Expansion Unit DX517 – Network Attached Storage (NAS) Enclosures

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1. Synology

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Synology 5bay Expansion Unit DX517 Diskless

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Synology #ad - Applied models: ds1817+, ds1517. Hot-swappable drive tray design. Screwless drive tray design reduces the time needed for system setup. Storage pool and volume creation processes may fail when using unverified drives. Note- it is strongly recommended that you only install drives listed on your device's compatibility list. Synchronized system operation with Disk Station. Dedicated local backup solution. Compatible drive type-3. 5 inch sata hdd, ds1517+, ds1817, 2.5 inch sata hdd, 2. 5 inch sata SSD. Online volume expansion.
BrandSynology #ad
ManufacturerSynology America Corp #ad
Height6.18 Inches
Length9.76 Inches
Weight8.62 Pounds
Width9.17 Inches
Part NumberDX517
ModelDX517
Warranty3 Years

2. Synology

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4-bay; 4GB DDR4, Synology 4 bay NAS DiskStation DS920+ Diskless

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Synology #ad - 4 gb ddr4 memory expandable up to 8 GB; Scalable up to 9 drives with Synology DX517. Two built-in m. 2 2280 nvme ssd slots permit cache acceleration without occupying storage drive bays. Intel quad-core processor with AES-NI hardware encryption engine, over 225 MB/s sequential read and write throughput. Average 15% performance boost to photo indexing and other computing-intensive operations, as well as database response time. By default, two camera licenses are installed; extra licenses can be purchased CLP1, clp4, or CLP8.
BrandSynology #ad
ManufacturerSynology #ad
Height6.54 Inches
Length8.78 Inches
Weight8.02 Pounds
Width7.83 Inches
Part NumberDS920+
ModelDS920+
Warranty3 year

3. Seagate

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Seagate IronWolf 12TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage – Frustration Free Packaging ST12000VN0008

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Seagate #ad - Purpose built for nas enclosures, ironWolf delivers less wear and tear, increased file-sharing performance, no lags or down time, little to no noise/vibration, and much more.

Easily monitor the health of drives using the integrated IronWolf Health Management system and enjoy long-term reliability with 1M hours MTBF. Ironwolf internal hard drives are the ideal solution for up to 8-bay, multi-user NAS environments craving powerhouse performance. Five-year limited product warranty protection plan and three year Rescue Data Recovery Services included. Store more and work faster with a nAS-optimized hard drive providing ultra-high capacity 12TB and cache of up to 256MB.
BrandSeagate #ad
ManufacturerSEAGATE #ad
Height1.03 Inches
Length5.79 Inches
Weight1.55 Pounds
Width4.01 Inches
Part NumberST12000VNZ008/N0008
ModelST12000VNZ008
Warranty3 Year Limited

4. Synology

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8-bay; 4gb ddr4, Synology 8 Bay DiskStation DS1821+ Diskless

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Synology #ad - Accelerated performance - 177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor. Includes everything to protect your data - back up critical data to and from public clouds, virtual machines, Hyper Backup, Windows PCs and servers, and data on the NAS with Synology Active Backup suite, and Snapshot Replication.

Maximize performance - turbocharge hdd arrays by 20x or more without occupying drive bays using dual built-in M. 2 slots for NVMe SSD cache. Ready for 10gbe - add in a 10gbe sfp+ or rj-45 NIC to instantly increase network bandwidth based on your existing infrastructure. Expansion made easy - scale-up on-demand to 18 drives with two DX517 expansion units.
BrandSynology #ad
ManufacturerSynology #ad
Height12.5 Inches
Length18.2 Inches
Weight13.23 Pounds
Width14.4 Inches
Part NumberDS1821+
ModelDS1821+
Warranty3 Years

5. Crucial

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Crucial P2 500GB 3D NAND NVMe PCIe M.2 SSD Up to 2400MB/s, CT500P2SSD8

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Crucial #ad - Nvme pcie interface, marking the next step in storage innovation. Includes ssd management software for performance optimization, data security, and firmware updates. Backed by a limited 5-year warranty or up to the max endurance rating of 150 TBW. Capacity: up to 2tb with sequential reads or writes up to 2400MB/s/1900MB/s.
BrandCrucial #ad
ManufacturerCrucial #ad
Height0.86 Inches
Length3.14 Inches
Weight0.04 Pounds
Width0.08 Inches
Part NumberCT500P2SSD8
ModelCT500P2SSD8
Warranty5-year limited warranty

6. SK hynix

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SK hynix Gold P31 500GB PCIe NVMe Gen3 M.2 2280 Internal SSD | Up to 3500MB/S | Compact M.2 SSD Form Factor SK hynix SSD | Internal Solid State Drive with 128-Layer NAND Flash

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SK hynix #ad - 5-year warranty, superior reliability and stability – tested and validated through 1, up to 1, 000 hours of HTOL Stress Test with MTBF reaching 1.

5 million hours, 200 TBW TeraBytes Written. Pioneering thermal efficiency – allowing the Gold P31 to run extremely cool while being primed for performance. Easy installation across multiple devices, pairing with our custom SK hynix edition Macrium cloning software. Top-tier performance – read speeds up to 3, 500 mb/s and write speeds of up to 3, 200 MB/s with proprietary SK hynix HYPERWRITE cache technology. Premium ssd powered by the global top 2 memory manufacturer, a tech leader since 1983.
BrandSK hynix #ad
ManufacturerSK hynix #ad
Height0.09 Inches
Length3.15 Inches
Weight0.02 Pounds
Width0.87 Inches
Part NumberSHGP31-500GM-2
ModelSHGP31-500GM-2
Warranty5 year manufacturer

7. Seagate

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SEAGATE ST6000VX001 Skyhawk 6TB Surveillance Hard SATA 6Gb/s 128MB Cache 3.5" Internal Drive-Frustration Free Packaging ST6000VX0023

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Seagate #ad - Up to 10tb of capacity to store up to 10, 000 hours of HD video. Custom-built for surveillance applications with Image Perfect firmware for crisp, clear, 24×7 video workloads. Rotational vibration rv sensors help maintain performance in RAID and multi-drive systems 4TB or higher. Maximum 180tb/year workload rating—3× the workload rating of desktop drives—for reliable performance in write-intensive surveillance systems.
BrandSeagate #ad
ManufacturerSeagate Bare Drives #ad
Height1.03 Inches
Length5.79 Inches
Weight1.43 Pounds
Width4.01 Inches
Part NumberST6000VXZ01
ModelST6000VX001
Warranty3-year limited

8. Synology

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Synology 1 bay NAS DiskStation DS118 Diskless

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Synology #ad - Sequential throughput at over 113 MB/s reading and 112 MB/s writing. 64-bit quad-core 1. 4ghz processor. High-performance 1-bay NAS for small offices and home users. Access and sync your files seamlessly from network, Check Synology website for full software features.
BrandSynology #ad
ManufacturerSynology America Corp #ad
Height2.8 Inches
Length8.82 Inches
Weight1.54 Pounds
Width6.54 Inches
Part NumberDS118
ModelDS118
Warranty2 Years

9. Toshiba

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Toshiba X300 8TB Performance & Gaming 3.5-Inch Internal Hard Drive – CMR SATA 6 GB/s 7200 RPM 256 MB Cache, HDWR180XZSTA

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Toshiba #ad - Designed for gaming PC and high-end desktop workstations. Toshiba's cache technology to deliver high-level performance in real time. Massive capacity to accommodate large gaming libraries. High performance with 7200 RPM and large cache size. Ramp loading and drive stabilization technologies for reliability.
BrandToshiba #ad
ManufacturerToshiba #ad
Height1.03 Inches
Length5.79 Inches
Weight1.7 Pounds
Width4 Inches
Part NumberHDWR180XZSTA
ModelHDWR180XZSTA
WarrantyToshiba 2 year limited warranty

10. Synology

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Synology RX418 4bay Expansion Unit Diskless

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Synology #ad - Energy-saving deep sleep mode. Plug-and-play design for seamless storage space upgrade. 12-inch depth to fit in 2-post racks and wall mount racks. Online volume expansion. Managed from synology DiskStation Manager DSM.
BrandSynology #ad
ManufacturerSynology America Corp #ad
Height1.73 Inches
Length16.95 Inches
Weight9.44 Pounds
Width11.42 Inches
Part NumberRX418
ModelRX418
Warranty3 Years