Asustor Nimbustor 4 Gen 2 (AS5404T)

The Nimbustor 4 Gen 2 (AS5404T) brings many modern amenities to the mid-range NAS market, with support for both NVMe and SATA drives, dual 2.5Gbit Ethernet and USB 3.2 Gen 2, all at a reasonable price. Can the software keep up with the hardware? We are about to find out!

The Nimbustor 4 Gen 2 (AS5404T) is an updated version of a very successful NAS (AS5304T, introduced in 2019), bringing affordable options to the mid-range NAS market. Admittedly, the naming scheme of the Asustor lineup can be a bit confusing at times. The NAS in this review is now marketed as the Asustor Numbustor 4 Gen 2 AS5404T.

This update has focused heavily on updating the hardware, making it even more competitive, especially in small or home office use cases. The most prominent difference from the previous model is the inclusion of four NVMe slots, which can be used either for caching or storage. At a retail cost of $529, it is reasonably priced and offers many setup options.

The AS5404T has received the same N5105 Intel CPU found in the Flashtor and Drivestore series. It boasts 4GB of DDR4 RAM at 3200 MHz, three USB 3.2 Gen 2 ports, and an important addition: four PCIe NVMe drive slots. The Celeron CPU is powerful enough and helps reduce the cost and power consumption. The NVMe slots boost the overall performance as they can be set up either for caching or storage. Finally, the HDMI 2.0b port around the back gives the option to use the NAS as a media device, able to output high-resolution content.

Technical Specifications:
  • Manufacturer: Asustor
  • Model Number: Nimbustor 4 Gen 2 (AS5404T)
  • Processor: Intel Celeron N5105 Quad-Core 2.0GHz (burst up 2.90 GHz)
  • Memory: 4GB SO-DIMM DDR4 (Expandable up to 16 GB, 2x 8GB)
  • Flash Memory: 8GB eMMC
  • Operating System: ADM 4.2 (Embedded Linux)
  • RAID Levels: Single, JBOD, RAID 0 / 1 / 5 / 6 / 10
  • Drive Bays: 4x
  • M.2 Drive Slots: 4x
  • Maximum Drives with Expansion Unit: 16x
  • File System (Internal Drives): EXT4, Btrfs
  • File System (External Drives): FAT32, NTFS, EXT3, EXT4, HFS+, exFAT, Btrfs
  • Networking: 2x 2.5 Gigabit Ethernet (2.5G/1G/100M)
  • I/O Ports: 3 x USB 3.2 Gen 2 (10Gbps); 1x HDMI 2.0b
  • 4K Video Transcoding Support: Yes
  • Dimensions (W x H x D): 174.0 x 170.0 x 230mm
  • Weight: 2.26kg (4.98lb)
  • Power Consumption: 38.3W (Access), 0.81 (Sleep Mode) [Seagate IronWolf 16TB installed]
  • Power Supply: External, 90W, 100–240 V
  • Fan(s): 1x 120mm
  • Warranty: 3 years
  • Price at Time of Review: $529
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2 thoughts on “Asustor Nimbustor 4 Gen 2 (AS5404T)

  1. You’re complaining about software??? It’s based on Linux so go complain to them about their lil OS kit that still has only 1/3 to 1/2 of a complete GUI when we’re almost 1/4 of the way through the 21rst century. I use my NAS for storage, not computing, not transcoding, just storage since that’s what it was intended to do, even says so in the dam name, Netwok Attached Storage or did you forget that lil acronym? You seem really concerned about the piece of cardboard the product came in, maybe you should do cardboard reviews only, dedicating an entire page of your review to a piece of cardboard that surrounds the product is just stupid it has nothing to do with performance which is why I came not to browse some anime gallery. Needless to say not impressed with your lil article and won’t be returning just not worth it with that type of content.

    1. Thanx for your comment. Any feedback is appreciated, but you are a bit over the edge, I think. By being ironic you don’t get anything. The reviewer added anything he believed it was worth to mention. If you dont like sth u could write it, in a formal way. It would have the same impact, believe me. Now, if u dont like the content, u are not obligated to stay or read anything in this site. There are countless other sites to visit, and might like your harsh comments as well, so feel free. I wish u the best.

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