Synology DS1522+ 5-Bay NAS - Diskless — main product image

Synology

Synology DS1522+ 5-Bay NAS - Diskless

Name: Synology DS1522+ 5-Bay NAS - Diskless
Brand: Synology
SKU: DS1522+

★★★★★4.7 (8458 reviews)

A scalable 5-bay NAS with fast sequential throughput, 10GbE upgrade options, and expansion up to 15 drives.

$750.94*

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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 DS1522+ is a 5-bay NAS enclosure designed to serve as a centralized storage hub for small to medium businesses, creative professionals, and advanced home users. With sequential read and write throughput reaching up to 736 MB/s and 796 MB/s respectively, it handles everyday file operations — backups, media streaming, shared folder access — with minimal lag. The four built-in 1GbE LAN ports support link aggregation and failover, while an optional 10GbE network card lets you tap into higher bandwidth for video editing workflows or large dataset transfers. The unit ships diskless, giving you full control over drive selection and RAID configuration.

Where the DS1522+ truly distinguishes itself is scalability and software. Two expansion ports accept Synology DX517 units, letting you grow from 5 to 15 total drive bays without migrating data or replacing hardware. On the software side, Synology's DiskStation Manager operating system provides a polished suite of built-in applications — from Synology Photos and Surveillance Station to Active Backup for Business and Virtual Machine Manager. The unit measures 9.17 x 9.06 x 6.54 inches, weighs 10.54 pounds without drives, and is backed by a 3-year manufacturer warranty. It accepts 100–240V input, making it suitable for deployment in any region.

Key Features

Up to 736/796 MB/s sequential read/write throughput makes file operations quick and efficient

Leverage built-in file and photo management, data protection, virtualization, and surveillance solutions

Four 1GbE ports for simple integration into existing environments with optional 10GbE connectivity to tackle more specialized, bandwidth-heavy applications

Add up to 10 extra drive bays with 2 DX517 expansion units for a maximum of 15 storage drives

3-year warranty

Specifications

Brand

Synology

Model

DS1522+

Drive Bays

5 (expandable to 15 with 2x DX517)

Sequential Read/Write

Up to 736/796 MB/s

LAN Ports

4x 1GbE (optional 10GbE via add-in card)

Input Voltage

100–240V AC

Dimensions (D x W x H)

9.17 x 9.06 x 6.54 inches

Weight

10.54 lbs (without drives)

Color

Black

Hard Drive Interface

Serial ATA

Warranty

3 years

Pros & Cons

👍 Pros

Sequential read/write speeds up to 736/796 MB/s handle large file transfers efficiently
Expandable from 5 to 15 drive bays using DX517 expansion units
Built-in Synology DiskStation Manager offers file management, photo organization, surveillance, and virtualization apps
Four 1GbE ports with link aggregation support, plus an optional 10GbE upgrade path

👎 Cons

Sold diskless, so the total cost of ownership is significantly higher once drives are purchased
10GbE requires an additional network adapter card, adding to the expense
The AMD Ryzen R1600 processor may bottleneck under heavy virtualization or simultaneous multi-user workloads
No built-in HDMI output for direct media playback

Frequently Asked Questions

Does the DS1522+ come with hard drives included?

No. This is a diskless unit — you purchase and install your own 3.5" SATA hard drives or 2.5" SATA SSDs separately.

Can I add more storage beyond the five built-in bays?

Yes. You can connect up to two Synology DX517 expansion units, adding 10 additional drive bays for a maximum of 15 total drives.

Does this NAS support 10 Gigabit Ethernet out of the box?

The DS1522+ ships with four 1GbE LAN ports. 10GbE connectivity is available as an optional add-in card via the expansion slot.

What file systems and RAID configurations does it support?

It supports Synology's SHR and SHR-2 as well as standard RAID 0, 1, 5, 6, 10, and JBOD configurations, using the Btrfs or ext4 file systems.

How loud is this unit during normal operation?

Synology rates the DS1522+ at approximately 20.7 dB(A) in noise level, making it relatively quiet for an office or home environment, though fan noise will vary with drive load and temperature.