Brands Guides About
Synology ASIHLAMZ477 DS1821+ 16TB NAS Server Ryzen 16GB — main product image
Synology

Synology ASIHLAMZ477 DS1821+ 16TB NAS Server Ryzen 16GB

Scalable 8-bay NAS powered by a Ryzen quad-core CPU, 16GB RAM, and M.2 SSD caching for business-grade storage.

View price on Amazon
Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Centralize Your Data with Confidence

The Synology DiskStation DS1821+ is a high-performance NAS server designed for businesses needing reliable data storage, backup solutions, and versatile server capabilities. Equipped with a Ryzen CPU, ample memory, fast M.2 SSD caching, and high-capacity HDDs, this NAS delivers exceptional performance and scalability, all managed by the intuitive Synology DSM operating system.

Specifications:

  • Brand: Synology
  • Model: ASIHLAMZ477
  • CPU: Ryzen V1500B Quad-Core 2.2GHz
  • Memory: 16GB DDR4 2666MHz SO-DIMM
  • M.2 Storage: 1TB (2 x 500GB) M.2 NVMe SSD
  • File Storage: 16TB (8 x 2TB) SATA HDD
  • Ports: 4 x RJ-45 1GbE LAN (with Link Aggregation/Failover), 4 x USB 3.2, 2 x eSATA
  • Operating System: Synology DSM
  • File System: EXT4, Btrfs

Similar Products

Other products from the same family that visitors often consider:

Synology DS224 2-Bay NAS 16TB HDD 16GB RAMCurrently Unavailable

Synology DS224 2-Bay NAS 16TB HDD 16GB RAM

Check on Amazon →
Synology DS1821+ 8 Bay NAS DiskStation (Diskless)Currently Unavailable

Synology DS1821+ 8 Bay NAS DiskStation (Diskless)

Check on Amazon →
Synology DS223 DiskStation NAS 16TB BundleCurrently Unavailable

Synology DS223 DiskStation NAS 16TB Bundle

Check on Amazon →
Synology RS822RP+ 16TB RackStation NAS BundleCurrently Unavailable

Synology RS822RP+ 16TB RackStation NAS Bundle

Check on Amazon →
Synology DS1821+ 32TB 8-Bay NAS BundleCurrently Unavailable

Synology DS1821+ 32TB 8-Bay NAS Bundle

Check on Amazon →

Pros & Cons

👍 Pros

  • Eight drive bays plus expansion support allow significant long-term storage growth
  • Ryzen V1500B quad-core CPU handles heavy multitasking and virtualization workloads
  • Dual M.2 NVMe SSD cache slots boost random I/O without occupying drive bays
  • Four 1GbE LAN ports with link aggregation increase network throughput and redundancy
  • Btrfs file system support provides snapshots, checksums, and data integrity features

👎 Cons

  • 1GbE LAN ports may bottleneck large file transfers compared to 10GbE NAS alternatives
  • Eight 2TB drives are relatively small per disk, limiting total raw capacity to 16TB
  • Fan and drive noise may be noticeable in a quiet office environment
  • Higher power consumption than smaller two- or four-bay NAS units
  • Setup and DSM configuration require some networking knowledge for optimal results

Frequently Asked Questions

Usable capacity depends on your RAID setup. For example, SHR/RAID 5 yields roughly 14TB, while RAID 6 provides about 12TB. Without redundancy (JBOD), the full 16TB is available but unprotected.
The two 500GB M.2 NVMe SSDs serve as an SSD cache, accelerating frequently accessed files and reducing latency for read-heavy workloads without using any of the eight main drive bays.
Yes, Synology offers expansion units (DX517) that connect via the eSATA ports, allowing you to add up to ten additional drives for greater total capacity.
It supports both EXT4 and Btrfs. Btrfs adds advanced features like snapshots, data checksums, and flexible shared folder quotas.
Yes, the four 1GbE LAN ports support Link Aggregation and Failover, enabling higher combined throughput and network redundancy.

Related Products