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Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology DS1821+ 32TB 8-Bay NAS Bundle
Synology

Synology DS1821+ 32TB 8-Bay NAS Bundle

An 8-bay NAS powered by an AMD Ryzen quad-core processor, bundled with 32TB of Seagate IronWolf drives and expandable to 18 bays.

$258.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Synology DS1821+ is an 8-bay desktop NAS aimed at small-to-medium businesses and advanced home users who need scalable, high-performance network storage. At its core is an AMD Ryzen V1500B quad-core processor clocked at 2.2GHz, paired with 4GB of DDR4 ECC SODIMM memory that can be expanded for more demanding workloads like Docker containers or virtual machine hosting through Synology's Virtual Machine Manager. This particular bundle comes preconfigured with eight 4TB Seagate IronWolf drives for 32TB of raw capacity, which can be configured in various RAID levels—including Synology Hybrid RAID (SHR)—to balance usable storage against redundancy based on your data protection requirements.

The DS1821+ is built for growth. Two M.2 2280 NVMe slots provide SSD caching to accelerate read and write operations on frequently accessed data, and the unit can scale from 8 to 18 total drive bays by adding up to two DX517 five-bay expansion units. Network connectivity includes four 1GbE RJ-45 ports supporting link aggregation and failover, with a PCIe 3.0 x8 slot available for installing a 10GbE network adapter when higher throughput is needed. Running Synology's DiskStation Manager operating system, the NAS provides a comprehensive suite of built-in applications covering file sharing, automated backup (including cloud sync to services like AWS and Azure), surveillance station support, and multimedia streaming—all managed through an intuitive browser-based interface.

Key Features

8-bay NAS: The Synology DS1821+ is an 8-bay NAS, which means it can accommodate up to 8 hard drives or SSDs. This makes it a great option for businesses or individuals who need a lot of storage space.

AMD Ryzen CPU: The DS1821+ is powered by an AMD Ryzen quad-core processor, which provides excellent performance for a variety of tasks, including file sharing, virtualization, and multimedia streaming.

Dual M.2 NVMe slots: The DS1821+ has two M.2 NVMe slots, which can be used to add SSD cache for improved performance.

Expandable storage: The DS1821+ can be expanded up to 18 bays by connecting two DX517 expansion units.

Sophisticated software: The DS1821+ comes with a wide range of software applications, including file sharing, backup, virtualization, and multimedia streaming.

Specifications

Brand
Synology
Model
DS1821+
Processor
AMD Ryzen V1500B Quad-Core 2.2 GHz
Memory
4 GB DDR4 ECC SODIMM
Drive Bays
8
Included Storage
32TB (8 x 4TB Seagate IronWolf)
M.2 Slots
2 x M.2 2280 NVMe
LAN Ports
4 x 1 GbE RJ-45
Expansion
Up to 18 bays (with 2 x DX517)
PCIe Slot
1 x PCIe 3.0 x8

Pros & Cons

👍 Pros

  • Ships ready to use with 32TB of NAS-optimized Seagate IronWolf drives pre-selected for compatibility.
  • The AMD Ryzen V1500B quad-core processor provides strong multi-tasking performance for simultaneous file serving, backup, and virtualization.
  • Expandable from 8 to 18 bays via DX517 expansion units, supporting long-term storage growth.
  • Dual M.2 NVMe cache slots accelerate performance without sacrificing any of the main drive bays.
  • Synology DiskStation Manager offers a mature software ecosystem with built-in apps for backup, surveillance, virtualization, and file syncing.

👎 Cons

  • Ships with only 4GB of DDR4 ECC RAM, which may need upgrading for heavier virtualization or container workloads.
  • The four LAN ports are limited to 1GbE, requiring a separate PCIe 10GbE card for faster network throughput.
  • The bundled 4TB drives result in 32TB raw capacity, which yields considerably less usable space after RAID redundancy.
  • The physical chassis is sized for 8 drives and two expansion units, making it a substantial footprint for smaller office environments.
  • DX517 expansion units required for scaling beyond 8 bays are sold separately at additional cost.

Frequently Asked Questions

This bundle includes 8 x 4TB Seagate IronWolf hard drives for a total raw capacity of 32TB. IronWolf drives are designed specifically for NAS workloads with features like rotational vibration sensors for multi-bay enclosures.
Yes, by connecting up to two Synology DX517 expansion units, the DS1821+ can scale to a total of 18 drive bays, allowing significant storage growth without replacing the base unit.
The two M.2 2280 NVMe slots are dedicated to SSD caching, which accelerates frequently accessed data reads and writes without occupying any of the eight main drive bays.
Yes, the DS1821+ supports multiple RAID types including Synology's own SHR (Synology Hybrid RAID) as well as standard RAID 0, 1, 5, 6, and 10 configurations through DiskStation Manager software.
The unit features four 1GbE RJ-45 LAN ports that can be configured for link aggregation or failover, and a PCIe expansion slot allows adding a 10GbE network card for higher throughput.

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