The catch
ASUSTOR Flashstor 6
This chassis cannot take existing SATA HDDs.
Side by side
ASUSTOR Flashstor 6 vs Nimbustor 2 Gen2 Compared: Only Nimbustor keeps SATA drives, while Flashstor takes six SSDs
Quick verdict
Flashstor 6 is the pick for an all-NVMe storage layout built on six M.2 drives. The AS5402T is the pick when two SATA drives must stay in the plan next to up to four NVMe drives. Dual 2.5GbE ports come on both, so six SSDs do not automatically make one computer transfer files faster.
Before you buy
Why, and what it costs you
Hard drives you already own can settle the enclosure
Two internal SATA drives fit in AS5402T, while Flashstor 6 has no SATA bays.
Where this comes from
Each chassis lists six total drive positions, yet the media formats differ.
The catch
ASUSTOR Nimbustor 2 Gen2
NVMe drives are accepted by just four positions.
ASUSTOR Flashstor 6
- Why pick it
- Go with six internal NVMe drives
- Make the whole drive layout SSD
- The catch
- This chassis cannot take existing SATA HDDs.
ASUSTOR Nimbustor 2 Gen2
- Why pick it
- Carry over two compatible SATA drives
- Add HDD capacity to four NVMe positions
- The catch
- NVMe drives are accepted by just four positions.
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What this page compares
Reusing hard drives, six NVMe positions and identical dual 2.5GbE networking: Flashstor 6 against AS5402T.
Flashstor 6 is the pick for an all-NVMe storage layout built on six M.2 drives. The AS5402T is the pick when two SATA drives must stay in the plan next to up to four NVMe drives. Dual 2.5GbE ports come on both, so six SSDs do not automatically make one computer transfer files faster.
Which one fits
Pick the situations that sound like you
Repurpose two internal SATA HDDs
Flashstor lacks SATA bays.
- ASUSTOR Flashstor 6
- Not suitable
- ASUSTOR Nimbustor 2 Gen2
- Better fit
Fit six internal NVMe drives
Four M.2 slots are on AS5402T.
- ASUSTOR Flashstor 6
- Better fit
- ASUSTOR Nimbustor 2 Gen2
- Not suitable
Run one built-in 2.5GbE connection
The per-port rating is the same on both.
- ASUSTOR Flashstor 6
- Similar
- ASUSTOR Nimbustor 2 Gen2
- Similar
Need eight internal NVMe drives
Six slots come with Flashstor 6 and four with AS5402T.
- ASUSTOR Flashstor 6
- Not suitable
- ASUSTOR Nimbustor 2 Gen2
- Not suitable
In practice
Differences you will notice
Hard drives you already own can settle the enclosure
Two internal SATA drives fit in AS5402T, while Flashstor 6 has no SATA bays.
How we worked this out
Each chassis lists six total drive positions, yet the media formats differ.
A different capacity plan comes with six NVMe drives
Two more M.2 positions than AS5402T come with Flashstor.
How we worked this out
Two additional NVMe positions come from six minus four. The figure assigns no RAID level and promises no usable capacity.
An all-SSD box still ends up on the same network sockets
Each built-in port on both chassis is 2.5GbE.
How we worked this out
Limits on drive media and on network line rate are separate. Combining ports takes a supported complete setup.
Option A
ASUSTOR, FS6706T
ASUSTOR Flashstor 6
Its fastest documented network path is 2.5 Gbps, and the chassis offers 6 primary M.2 NVMe storage slots.
- Best for
- Go with six internal NVMe drives
Facts we checked
- Bays for SATA: None
- NVMe slots in M.2: 6
- Onboard Ethernet: Two 2.5GbE ports
- RAM installed: 4 GB
Option B
ASUSTOR, AS5402T
ASUSTOR Nimbustor 2 Gen2
A 2-bay chassis whose fastest documented network path is 2.5 Gbps.
- Best for
- Carry over two compatible SATA drives
Facts we checked
- SATA bays: 2
- NVMe slots in M.2: 4
- Onboard Ethernet: Two 2.5GbE ports
- RAM installed: 4 GB
Spec by spec
Where they really differ
| Spec | ASUSTOR Flashstor 6 | ASUSTOR Nimbustor 2 Gen2 | In practice |
|---|---|---|---|
| SATA bays | None | 2 | The Nimbustor chassis or separate external storage is what existing SATA HDDs need. |
| M.2 NVMe slots | 6 | 4 | Only on Flashstor is the sixth drive position an NVMe position. |
| Built-in Ethernet | Two 2.5GbE ports | Two 2.5GbE ports | The drive media leaves per-port networking unchanged. |
| Installed RAM | 4 GB | 4 GB | RAM capacity at the start is the same in the selected packages. |
Trade-offs
What each pick costs you
With ASUSTOR Flashstor 6
- The available network interfaces are still shared by six NVMe drives.
With ASUSTOR Nimbustor 2 Gen2
- Two HDDs fill both SATA bays right away.
Change of plan
When the answer changes
You need six NVMe positions
Go with ASUSTOR Flashstor 6. Six M.2 slots are on Flashstor.
Two SATA HDDs have to stay internal
Go with ASUSTOR Nimbustor 2 Gen2. Two SATA bays are on AS5402T.
I require a built-in 10GbE port
Neither model fits. Unlike another model in its family, the six-slot Flashstor is dual 2.5GbE.
Decision guide
How to decide
Hard drives you already own can settle the enclosure
When two compatible NAS HDDs already hold the archive, the AS5402T can take them into a new layout that also has four NVMe positions. Flashstor needs an all-NVMe plan, or separate storage for those HDDs. Reusing drives does not mean an existing array can simply be inserted without migration, so verify the data-transfer rules first.
A different capacity plan comes with six NVMe drives
Of these two models, a planned six-drive NVMe array requires Flashstor. The AS5402T can reach six physical drives by mixing two SATA and four NVMe positions, but that is a different media layout. Before calculating useful capacity, check that the operating system supports the pools and redundancy you intend.
An all-SSD box still ends up on the same network sockets
Pick Flashstor for its media layout. Do not assume it gives faster single-cable access. The AS5402T can use NVMe too, and both connect through the same per-port speed rating. For one workstation, verify its adapter and storage workload. No matched evidence here shows that one produces better editing performance or lower room noise.
What this page can’t tell you
- Comparative noise, transfer and editing benchmarks were not performed.
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
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| ASUSTOR Flashstor 6 |
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| ASUSTOR Nimbustor 2 Gen2 |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
ASUSTOR Flashstor 6
Go with six internal NVMe drives
See price & reviews on AmazonASUSTOR Nimbustor 2 Gen2
Carry over two compatible SATA drives
See price & reviews on AmazonEach link opens in a new tab.
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