How many fit
Only 8 of the 32 models checked meet every need here: “Room beyond four drives”.
8 models fit, out of 32 checkedPicked for one job
Best NAS for growing past four drives
Top pick
Synology DiskStation DS1525+
The highest verified bay count in this set belongs to DS1525+, which reaches fifteen bays using expansion units.
Why it suits this job
- Storage is provided by a 5-bay chassis.
- Its fastest documented network connection is 10 Gbps.
- The catch
- Hardware media transcoding is a weak point.
More reasons we picked it
- Hardware Plex transcoding is absent from this model’s documentation.
- Camera recording is possible, but the licensed channel count hinges on the software and plan selected.
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With expansion units, DS1525+ gets to fifteen bays, which is the highest verified count in this set.
By the numbers
What the data shows
What we found across the NAS devices we compare, plus the checked facts behind each finding.
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “Room beyond four drives”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Synology DiskStation DS1525+ |
|
|
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Decision guide
How to choose for this job
DS1525+ tops this set for verified bay count, reaching fifteen bays once expansion units are added.
What settles the choice
You buy expansion hardware on top of the unit. It begins with five bays, and the documented maximum is fifteen.
Why Synology DiskStation DS1525+ stays on top
It is a 5-bay chassis with a fastest documented network path of 10 Gbps.
When the other option wins out
Bays can’t be added by upgrading the processor. The starting point is the storage layout and the growth you expect.
What this page can’t tell you
- Drives that are compatible now may not stay so.
- Real transfer speed varies with the full network and drive array.
- Plex behavior changes with the exact media format and client.
1 options
The top pick and the alternatives
Synology, DS1525+
Synology DiskStation DS1525+
It offers five SATA bays, dual native 2.5GbE and ECC memory, plus a separate 10GbE mini-module for upgrading the network.
Top pick ifhold camera recordings while sharing with a small team
Key facts
- Two M.2 NVMe slots plus five SATA bays
- The optional E10G22-T1-Mini brings 10GbE on top of two native 2.5GbE ports
The catch
Hardware media transcoding is a weak point.
Ready to buy
See today’s price and what owners say
Top pick for this job
Synology DiskStation DS1525+
Storage is provided by a 5-bay chassis.
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