Synology DS1821+

$1,099.99 to $5,699.00

5.0 (1)

4 Critic Reviews

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Page last updated Feb 19, 2026

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We compare 600+ stores and found this item at 2 stores. Prices updated January 28, 2026.

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$5,699.00

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4.7 (107)

$1,099.99

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Description

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Unlock the full potential of your music production setup with the Synology DS1821+. Designed for musicians and creators who need robust data management, this high-performance 8-bay NAS enclosure is your go-to solution for seamless file sharing, backups, and more. With its AMD Ryzen quad-core processor, this unit is built to handle demanding workloads, ensuring your files are always accessible and secure. Whether you’re storing audio samples, backing up live recordings, or managing collaborative projects, the DS1821+ provides unmatched speed and efficiency.

The DS1821+ supports up to eight 3.5" or 2.5" SATA drives in various RAID configurations, including RAID 0, 1, 5, 6, 10, Synology Hybrid, and JBOD. This flexibility allows you to tailor your storage setup to your specific needs, providing you with a maximum single volume size of 108TB. Amplify your performance further by installing up to two M.2 NVMe PCIe SSDs for cache acceleration, boosting your data access speeds incredibly.

Connectivity is key for any modern music setup, and the DS1821+ delivers with four Gigabit Ethernet ports featuring Link Aggregation and Failover support. If that's not enough, use the PCIe 3.0 slot to install a 10GbE network adapter for lightning-fast transfers. Add up to 32GB of memory via two SO-DIMM slots to supercharge your NAS's performance.

Key Features:

AMD Ryzen quad-core processor for high-speed performance
Supports up to eight 3.5" or 2.5" SATA drives in various RAID configurations
Two M.2 NVMe PCIe slots for cache acceleration
Four Gigabit Ethernet ports with Link Aggregation and Failover support
PCIe 3.0 slot for expansion options, including 10GbE network adapters
Scalable up to 32GB of memory with two SO-DIMM slots
Integrated Synology DSM for versatile file management and security applications

Owner's manual

Synology DS1821+ User Manual

Videos

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NASCompares

Synology DS1821+ NAS - Should You Buy It

NASCompares

Upgrading Synology DS1821+ with 8TB Samsung 870 QVO! It is a PERFECT Upgrade for FAST Storage!

UTECHPIA

予算を抑えて簡単に作れる10GbE超高速NAS！Synology 10GbE DS1821+で動画編集も超快適に！作業効率が爆上がりだぞ！【シノロジー,レビュー】

セゴリータ三世 / Segorita the 3rd

Reviews

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PROS

Easy migration process from older Synology models, minimizing downtime.
User-friendly interface, accessible for non-IT professionals.
Supports a wide range of applications, enhancing functionality beyond storage.
Excellent data protection with Synology Hybrid RAID and drive fault tolerance.
Solid performance with potential for customization and upgrades.
Seamless integration with existing Synology ecosystem.
Fast file transfer speeds with 10Gbe network card upgrade.
Comprehensive software suite for diverse needs, including backup and media server capabilities.

CONS

High cost with additional upgrades, potentially reaching $2700.
Not equipped with the latest hardware, limiting high-speed applications.
Lack of 10 gig ethernet ports limits speed potential out of the box.
Synology tech support reportedly poor based on past experiences.
Potential reliability concerns with previous models failing after two years.

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Synology DS1821+.

Features and functionality

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The DS1821+ maintains low CPU usage around 7-8% even with multiple applications like surveillance, Plex, and various Docker containers.
Source
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AMD Ryzen CPU lacks iGPU, affecting Plex transcoding capabilities; transcoding relies solely on CPU.
Source

Mods and upgrades

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Switching to Noctua NF-A12 fans offers quieter operation with only a 4°C increase in temperature, compared to the warmer NF-P12 redux fans.
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Scythe Kaze Flex 120MM PWM fans significantly reduce noise levels compared to stock fans.
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Installing a 10GBe card, like the dual-port 2.5GBe card, enhances network speed and connectivity, allowing data transfer efficiency.
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Scythe Kaze Flex 120mm fans offer a quieter experience, though they may cause a slight 1-2°C temperature increase, still within comfortable limits.
Source

Setup and maintenance

0 0

Combining new drives in bays 1-4 and existing WD drives in bays 7-8 to create two separate volumes is possible without issues.
Source

User experience

0 0

Owners note that the DS1821+ performs reliably for media consumption and storage tasks, making the pricier DS1823xs+ unnecessary for non-intensive users.
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Users report successful use of Ubuntu minimal server VMs for specific applications like Teslamate and OpenVPN, indicating better performance with lightweight setups.
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Software and compatibility

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The DS1821+ does not require exclusive Synology drives, allowing flexibility with third-party drives when using a compatibility script.
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NVMe cache drives don't significantly benefit Plex or Docker applications without Synology allowing NVMe volumes in DSM 7.2.
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Users need to access the system via SSH and run scripts to use non-Synology M.2 drives for storage pools, which must be repeated after updates.
Source

Use cases and applications

0 0

Works well with Docker containers but struggles with running multiple VMs due to CPU limitations.
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With 32 or 64 GB of RAM, the DS1821+ efficiently manages 5-6 non-intensive VMs, especially when using an NVME pool for VMs.
Source

Build quality

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The DS1821+ is praised for its compact size and absence of an external power brick, enhancing its sleek and tidy setup.
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Comparisons

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Some owners opt for an Intel NUC or M1 Mac Mini for VM workloads, using the DS1821+ primarily as a storage device.
Source

Critic Reviews

Synology DiskStation DS1821+ Review - StorageReview.com

storagereview.com

The Synology DS1821+ delivers impressive performance with its AMD Ryzen CPU and robust scalability options, making it a strong contender for SMBs needing reliable storage solutions. Its dual M.2 slots for NVMe SSD caching further enhance speed, while the DiskStation Manager software provides a user-friendly interface packed with features. However, the lack of built-in 10GbE connectivity is a notable drawback, and the encryption process can slightly hinder performance. Overall, it’s a well-rounded NAS that excels in both capacity and functionality, though it could use some enhancements in speed options.

positive

Full Review

Review: Synology DiskStation DS1821+

jussiroine.com

The Synology DiskStation DS1821+ delivers robust performance and a user-friendly setup for those needing a powerful NAS solution. Its AMD Ryzen CPU and impressive specs, including support for up to 18 drives, provide future-proofing and flexibility. The seamless integration with Synology’s DiskStation Manager enhances usability, making file management a breeze. However, the initial investment can be steep, and while the fan is user-serviceable, some may find certain RAM compatibility issues frustrating. Overall, this NAS stands out for its reliability and features, but prospective buyers should weigh the cost against their specific needs.

positive

Full Review

Synology DS1821+ Review - Downbeat Lounge

downbeatlounge.org

While the Synology DS1821+ shines with its robust performance and excellent expandability, it stumbles with the lack of a dedicated hardware video transcoder, which may hinder real-time 4K streaming. The user-friendly DSM interface makes management a breeze, and the backup capabilities are top-notch. However, the initial investment is significant, and the slow transcoding speed could deter multimedia professionals. Ultimately, the DS1821+ is a powerful and reliable NAS for small businesses and home networks, but it may not cater to every user's needs.

positive

Full Review

Synology DiskStation DS1821+ review: Hard to fault | ITPro

itpro.com

The Synology DiskStation DS1821+ delivers outstanding performance with ample features, making it an excellent choice for small to medium businesses. Its AMD Ryzen CPU offers a significant boost over its predecessor, ensuring speedy data handling and encryption. The robust software package enhances data protection and management capabilities. However, the lack of multi-Gigabit ports as standard is a notable downside that could limit network performance for some users. Overall, the DS1821+ stands out as a compelling NAS solution, blending power and value effectively.

positive

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Pricing and availability

Description

Owner's manual

Videos

Reviews

PROS

CONS

Owner Insights

Features and functionality

Mods and upgrades

Setup and maintenance

User experience

Software and compatibility

Use cases and applications

Build quality

Comparisons

Critic Reviews

Synology DiskStation DS1821+ Review - StorageReview.com

Review: Synology DiskStation DS1821+

Synology DS1821+ Review - Downbeat Lounge

Synology DiskStation DS1821+ review: Hard to fault | ITPro

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