Synology

Synology 4-Bay DiskStation DS923+ (Diskless)

Name: Synology 4-Bay DiskStation DS923+ (Diskless)
Brand: Synology
SKU: B0BM7KDN6R

Status: Synology 4-Bay DiskStation DS923+: Unavailable on Amazon as of 2026-10-20 16:13 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

🛒 Search eBay for this model

Bottom line: The Synology 4-Bay DiskStation DS923+: Four bays expand to nine drives with one DX517 expansion unit; main trade-off: diskless, so budget for four drives on top of the enclosure.

Unavailable on Amazon as of 2026-10-20 16:13 UTC

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Synology DiskStation DS423 4-Bay 3.5 Diskless… — $428.29 on Amazon as of 2026-10-20 16:16 UTC (price may vary).

View Current Price — $428.29

Similar: Synology DiskStation 12 Bay DS2422+ Quad Core… — $1,999.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $1,999.99

Similar: Synology 8-Bay DiskStation DS1823xs+ — $2,049.99 on Amazon as of 2026-10-20 16:16 UTC (price may vary).

View Current Price — $2,049.99

Original listing (currently unavailable) → Compare to similar nas & home servers

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-20

Mike Perry — Hardware researcher since 2014. For NAS and home-server hardware, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference. About the author →

Pros & Cons

Pros

✓ Four bays expand to nine drives with one DX517 expansion unit
✓ Optional 10GbE upgrade path beyond the two built-in 1GbE ports
✓ NVMe SSD support for read/write caching or separate storage pools
✓ 3-year warranty from Synology

Cons

✗ Diskless, so budget for four drives on top of the enclosure
✗ Only 1GbE out of the box; 10GbE requires a separate add-in card
✗ DX517 expansion unit is sold separately
✗ No listed 2.5GbE middle ground between 1GbE and 10GbE

Manufacturer description

The Synology DS923+ is a 4-bay diskless NAS built around DiskStation Manager (DSM), Synology's software layer for file sharing, sync, backup, virtualization, and surveillance. You supply your own drives, which keeps the entry cost tied to the enclosure and lets you scale storage on your own schedule. Two 1GbE ports handle straightforward integration into an existing network, and an optional 10GbE upgrade opens the door to bandwidth-heavy work like multi-user editing or large dataset transfers. When four bays stop being enough, a single DX517 expansion unit adds five more for a nine-drive…

SpecPicks Verdict

SpecPicks scored Synology 4-Bay DiskStation DS923+ using a rating × review-volume × price-fit model applied to published specs and reviews across the nas & home servers category. Synology's nas & home servers lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for nas & home servers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the Synology DS923+ come with hard drives?

No. The DS923+ ships diskless, so you buy the four drives separately and choose your own capacity and drive class.

How many drives can the DS923+ hold in total?

Four internally. Adding one DX517 expansion unit brings you to a maximum of nine storage drives.

Can I get faster than 1GbE networking on the DS923+?

Yes. It has two 1GbE ports built in, with optional 10GbE connectivity for bandwidth-heavy applications.

Can I add SSDs for caching on the DS923+?

Yes. The DS923+ supports NVMe SSDs, which you can use for caching or as additional storage pools.

What warranty comes with the Synology DS923+?

Synology lists a 3-year warranty. Check the current product listing to confirm terms for your region.

Key Features

Leverage built-in file and photo management, data protection, virtualization, and surveillance solutions
Two 1GbE ports for simple integration into existing environments with optional 10GbE connectivity to tackle more specialized, bandwidth-heavy applications
Add 5 extra drive bays with one DX517 expansion unit for a maximum of 9 storage drives
3-year warranty
Check Synology knowledge center or YouTube channel for help on product setup and additional information

Full Specifications

Size	DS923+
Brand	Synology
Color	Black
Material	Plastic Metal
Unit Count	1 Count
Model Number	DS923+
Mounting Type	Tabletop
Built-In Media	1 x DS923+ main unit; 1 x Quick Installation Guide; 1 x Accessory pack; 1 x AC power adapter; 1 x AC power cord; 2 x RJ-45 LAN cables
Item Type Name	Synology NAS
Mfr Part Number	DS923+
Number of Items	1
Weight Capacity	Maximum weight: 4.9 pounds
Compatible Devices	Android, Desktop, Laptop, Server, iPhone
Enclosure Material	Plastic Metal
Warranty Description	3 Year
Item Dimensions D x W x H	6.54"D x 7.83"W x 8.78"H

Ready to buy?

Amazon shows no buyable offer for Synology 4-Bay DiskStation DS923+ at the last check. A similar in-stock product is Synology DiskStation DS423 4-Bay 3.5 Diskless…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $428.29