TheASUSTOR AS5404T is a powerful 4-bay NAS server featuring an Intel Quad-Core 2.0 GHz processor, 4 GB DDR4 RAM and dual 2.5 GbE network connectivity. It can accommodate 4 hard disks or SSDs (2.5"/3.5"), 4 SSDs in M.2 2280 format, 3 USB 3.1 ports and an HDMI 2.0a output. With its impressive multimedia capabilities and blistering performance, it's a first-class storage and streaming solution for gamers, streamers and fans of 4K UHD content.
Do more with Nimbustor 2 Gen2
Nimbustor Gen2 offers four M.2 PCIe 3.0 slots for NVMe SSDs that support storage, caching or a mix of both. The Nimbustor Gen2 also features two 2.5 GbE LAN ports to help power the incredible random I/O performance provided by the SSDs while ensuring maximum sequential performance with SMB Multichannel enabled.
Quad-Core 2 Ghz CPU and 4GB DDR4 RAM
The Nimbustor 4 Gen 2 uses the Intel Jasper Lake Celeron N5105 Quad-Core CPU, making the Nimbustor 2 Gen 2 a responsive NAS that's at home in any environment. The Nimbustor 4 Gen 2 comes with 4GB of DDR4 RAM, expandable up to 8GB.
Watch your UHD content with ease
With real-time 10-bit 4K H.265 hardware decoding, the Nimbustor Gen2 plays high-definition video via LooksGood or an HDMI-compatible display without latency for an immersive digital experience.
Take advantage of Looksgood, Soundsgood, Photo Gallery 3 and their corresponding mobile applications to access files individually or share data with friends and family in the knowledge that your data is safe from large data farms.
Complete backup and virtualisation solution
Snapshots, Cloud Backup, DataSync Centre
Supports Windows, Mac, phone/tablet and external device backups.
Full support for iSCSI/IP-SAN and NFS
Ready for VMware, Citrix and Hyper-V Supports virtualisation and Docker applications
I am waiting for feedback from ASUSTOR to fix a problem:
This NAS crashes on its own, without me asking it to do anything: it overloads the CPU during an HDD check (the basic system of a NAS), making it inaccessible and unusable. I am forced to manually shut it down and restart it. This happens several times a day...
Furthermore, these disk checks take place at times that are inconsistent with the established schedule.
Until Asustor responds to me regarding this issue, which is clearly related to the product's internal software, this NAS cannot be used normally...
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by Lanthalas
Posted on 2 Jan 2026
Bought on 5 Dec 2025 from LDLC
Number of reviews: 6Average rating: 9
Great product
I'm a fan of Asustor. This one is a real must-have in terms of features.
Delivery was fast and the product was flawless.
I recommend Asustor and ldlc.
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by ChristianA
Posted on 9 Jun 2025
Bought on 12 May 2025 from LDLC
Number of reviews: 3Average rating: 10
ASUSTOR Nimbustor: Very good quality
High-performance, versatile NAS, ideal for demanding users.
It has 4 bays for hard disks and 4 M.2 NVMe slots, offering great storage flexibility.
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by AndreR
Posted on 20 Dec 2024
Bought on 3 Sep 2024 from LDLC
Number of reviews: 4Average rating: 9
Very good product
Replacing an AS3104T that had become a backup, it does the job very well despite a complicated start (delivered broken but repaired by LDLC after attempting to repair it online with the Asustor hotline). There's just one point to be aware of: if you want to add read-write SSD cache memory, you need to add two SSDs, which I didn't know about and which didn't seem obvious to me in the technical manual.
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by Sebastien L
Posted on 1 Aug 2024
Bought on 3 Jul 2024 from LDLC
Number of reviews: 1Average rating: 10
A powerful and versatile NAS, an excellent alternative
I recently opted for the ASUSTOR Nimbustor 4 Gen 2 AS5404T NAS, and I have to say I'm extremely happy with my choice. I've added 16GB of Crucial RAM, a 512GB NVMe SSD for caching, and four 4TB Seagate hard drives each. The whole thing works perfectly, delivering smooth, reliable performance.
ASUSTOR's operating system is really interesting, especially if you have some knowledge of Docker and Linux. It offers a multitude of possibilities for customising and optimising the use of the NAS, which is a real plus for advanced users. The available applications and integrated functions are both rich and varied, making this NAS very versatile.
Having already had experience with Synology and QNAP NAS, I find that the ASUSTOR Nimbustor 4 is just as good. The build quality is solid, the user interface is intuitive, and the performance lives up to my expectations. What's more, support for virtualisation solutions and compatibility with various open source applications make this model particularly attractive for those who want to explore the possibilities of a NAS in greater depth.
In conclusion, I'd highly recommend the ASUSTOR Nimbustor 4 Gen 2 AS5404T to anyone looking for a robust, high-performance network storage solution with plenty of customisation options and excellent value for money.
