Main trade-off
ASUSTOR Flashstor 6
Existing SATA HDDs cannot go in this chassis.
Head-to-head
ASUSTOR Flashstor 6 vs Nimbustor 2 Gen2: Flashstor takes six SSDs, only Nimbustor keeps SATA drives
The short answer
Choose Flashstor 6 for an all-NVMe storage layout with six M.2 drives. Choose AS5402T when two SATA drives need to stay in the plan alongside up to four NVMe drives. Both use dual 2.5GbE ports, so six SSDs do not automatically make one computer transfer files faster.
Before you choose
The reasoning and the trade-offs
Your existing hard drives can decide the enclosure
AS5402T accepts two internal SATA drives. Flashstor 6 has no SATA bays.
What this is based on
The media formats differ even though each chassis lists six total drive positions.
Main trade-off
ASUSTOR Nimbustor 2 Gen2
Only four positions accept NVMe drives.
ASUSTOR Flashstor 6
- Choose it for
- Use six internal NVMe drives
- Build an all-SSD drive layout
- Main trade-off
- Existing SATA HDDs cannot go in this chassis.
ASUSTOR Nimbustor 2 Gen2
- Choose it for
- Reuse two compatible SATA drives
- Combine HDD capacity with four NVMe positions
- Main trade-off
- Only four positions accept NVMe drives.
About this comparison
Compare Flashstor 6 and AS5402T for reusing hard drives, six NVMe positions and the same dual 2.5GbE networking.
Choose Flashstor 6 for an all-NVMe storage layout with six M.2 drives. Choose AS5402T when two SATA drives need to stay in the plan alongside up to four NVMe drives. Both use dual 2.5GbE ports, so six SSDs do not automatically make one computer transfer files faster.
Winner by situation
Start with what you need it to do
Reuse two internal SATA HDDs
Flashstor has no SATA bays.
- ASUSTOR Flashstor 6
- Not suitable
- ASUSTOR Nimbustor 2 Gen2
- Better fit
Install six internal NVMe drives
AS5402T has four M.2 slots.
- ASUSTOR Flashstor 6
- Better fit
- ASUSTOR Nimbustor 2 Gen2
- Not suitable
Use one built-in 2.5GbE connection
Both provide the same per-port rating.
- ASUSTOR Flashstor 6
- Similar
- ASUSTOR Nimbustor 2 Gen2
- Similar
Require eight internal NVMe drives
Flashstor 6 provides six slots and AS5402T provides four.
- ASUSTOR Flashstor 6
- Not suitable
- ASUSTOR Nimbustor 2 Gen2
- Not suitable
What matters in practice
The differences that matter
Your existing hard drives can decide the enclosure
AS5402T accepts two internal SATA drives. Flashstor 6 has no SATA bays.
How we reached this conclusion
The media formats differ even though each chassis lists six total drive positions.
Six NVMe drives support a different capacity plan
Flashstor provides two additional M.2 positions beyond AS5402T.
How we reached this conclusion
Six minus four equals two additional NVMe positions. This does not assign a RAID level or promise usable capacity.
An all-SSD box still meets the same network sockets
Both chassis have 2.5GbE per built-in port.
How we reached this conclusion
Drive media and network line rate are separate limits. Combining ports requires a supported complete setup.
Choice A
ASUSTOR, FS6706T
ASUSTOR Flashstor 6
The chassis has 6 primary M.2 NVMe storage slots. Its fastest documented network path is 2.5 Gbps.
- Best matched use
- Use six internal NVMe drives
Checked facts
- SATA bays: None
- M.2 NVMe slots: 6
- Built-in Ethernet: Two 2.5GbE ports
- Installed RAM: 4 GB
Choice B
ASUSTOR, AS5402T
ASUSTOR Nimbustor 2 Gen2
The chassis has 2-bay storage. Its fastest documented network path is 2.5 Gbps.
- Best matched use
- Reuse two compatible SATA drives
Checked facts
- SATA bays: 2
- M.2 NVMe slots: 4
- Built-in Ethernet: Two 2.5GbE ports
- Installed RAM: 4 GB
Meaningful differences
What changes the fit
| What changes | ASUSTOR Flashstor 6 | ASUSTOR Nimbustor 2 Gen2 | Why it matters |
|---|---|---|---|
| SATA bays | None | 2 | Existing SATA HDDs need the Nimbustor chassis or separate external storage. |
| M.2 NVMe slots | 6 | 4 | The sixth drive position is an NVMe position only on Flashstor. |
| Built-in Ethernet | Two 2.5GbE ports | Two 2.5GbE ports | Per-port networking does not change with the drive media. |
| Installed RAM | 4 GB | 4 GB | The selected packages begin with the same RAM capacity. |
What you give up
Every choice has a cost
If you choose ASUSTOR Flashstor 6
- Six NVMe drives still share the available network interfaces.
If you choose ASUSTOR Nimbustor 2 Gen2
- Both SATA bays fill immediately with two HDDs.
Recommendation switch
The decision flips if...
Six NVMe positions are required
Choose ASUSTOR Flashstor 6. Flashstor has six M.2 slots.
Two SATA HDDs need to remain internal
Choose ASUSTOR Nimbustor 2 Gen2. AS5402T has two SATA bays.
I need a built-in 10GbE port
Choose neither. The six-slot Flashstor is dual 2.5GbE, unlike another model in its family.
What matters in practice
How to make the call
Your existing hard drives can decide the enclosure
If two compatible NAS HDDs already hold the archive, AS5402T can include them in a new layout with four NVMe positions. Flashstor needs an all-NVMe plan or separate storage for those HDDs. Reusing drives does not imply that an existing array can be inserted without migration, so verify data-transfer rules first.
Six NVMe drives support a different capacity plan
A planned six-drive NVMe array requires Flashstor among these two models. AS5402T can reach six physical drives by mixing two SATA and four NVMe positions, but that is a different media layout. Check whether the operating system supports the pools and redundancy you intend before calculating useful capacity.
An all-SSD box still meets the same network sockets
Choose Flashstor for the media layout rather than an assumption of faster single-cable access. AS5402T can use NVMe too, and both connect through the same per-port speed rating. For one workstation, verify its adapter and storage workload. There is no matched evidence here that one produces better editing performance or lower room noise.
What this comparison cannot tell you
- No comparative noise, transfer or editing benchmark was performed.
What the facts say
What the comparison shows
Useful conclusions from the current NAS devices comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| ASUSTOR Flashstor 6 |
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| ASUSTOR Nimbustor 2 Gen2 |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
ASUSTOR Flashstor 6
Use six internal NVMe drives
See price & reviews on AmazonASUSTOR Nimbustor 2 Gen2
Reuse two compatible SATA drives
See price & reviews on AmazonLinks open in a new tab.