Surprisingly strong 4TB Gen4 drive InnoGrit IG5220 controller, ~6.4 GB/s reads, good thermals
I was somewhat cautious about this drive because LUFASND is not a brand I was familiar with, and Windows/CrystalDiskInfo identifies the SSD only as a generic “PCIe SSD.” After investigating the hardware and putting it through some testing, however, I have been pleasantly surprised.

I installed the 4TB NS-N03 in the CPU-connected PCIe 4.0 x4 M.2 slot of an ASRock Z790 Taichi running Windows 11. This is a workstation with a 13th-gen Intel CPU and two Radeon AI PRO R9700 GPUs, and I primarily intend to use the SSD for large AI/LLM model files, datasets, games, and other fast bulk storage.

Hardware investigation:

Although the SSD reports a generic model name, its PCI hardware ID is:

VEN_1DBE & DEV_5220

This identifies the controller as an InnoGrit IG5220 (RainierQX) PCIe 4.0 x4 NVMe controller. It is a modern DRAM-less design that uses Host Memory Buffer (HMB).

The drive itself is also single-sided, with all components on one side of the PCB. That is a nice feature for compatibility and cooling, especially in laptops or systems using motherboard M.2 heatsinks.

The PCB has the UL marking E186014, which traces to Brain Power (Qingyuan), while the included documentation identifies Shenzhen Haipusituo Technology as the company behind the LUFASND brand.

The Amazon listing specifies 3D TLC NAND, although I could not independently identify the NAND manufacturer from software diagnostics or the markings visible on the drive. So the TLC designation is based on the manufacturer’s product listing rather than direct identification of the NAND chips.

Performance:

The label advertises read speeds of up to 7300 MB/s.

In CrystalDiskMark using the standard 1GiB test, I measured approximately:

Sequential read: 6396 MB/s

Sequential write: 6115 MB/s

4K Q1 read: 90 MB/s

4K Q1 write: 292 MB/s

Those are already very good Gen4 numbers.

More importantly, I repeated the benchmark using a much larger 64GiB test size with 3 passes to make sure the drive was not only performing well with a tiny benchmark workload.

Results were still excellent:

Sequential read Q8: 6376 MB/s

Sequential write Q8: 5991 MB/s

Sequential read Q1: 3930 MB/s

Sequential write Q1: 5669 MB/s

4K Q1 read: 72 MB/s

4K Q1 write: 291 MB/s

The sequential performance barely changed between the 1GiB and 64GiB tests, which was encouraging.

For comparison, I also have a Samsung 980 PRO 2TB in this system. In my testing, the Samsung reached about 6790 MB/s read and 4940 MB/s write. The LUFASND was slightly slower in peak sequential reads but considerably faster in these short-to-medium sequential write tests.

That does not necessarily mean it will sustain 6GB/s writes indefinitely. A nearly empty 4TB SSD can have a very large pseudo-SLC cache, and I did not intentionally write hundreds of gigabytes continuously just to exhaust it. But for normal desktop use, gaming, and especially large read-heavy AI model storage, the observed performance is excellent.

Thermals and SMART health:

Cooling has also been very good.

The drive normally sits around 38–40C and reached only about 48C after the 64GiB 3 benchmark under the ASRock motherboard’s M.2 heatsink.

CrystalDiskInfo showed:

0 critical warnings

0 media/data integrity errors

0 warning-temperature time

0 critical-temperature time

0 thermal-management/throttling events

The benchmark generated several hundred gigabytes of additional reads and writes, and the SMART health remained at 99% afterward.

My system already has two blower-style workstation GPUs installed, so these temperatures were measured in the actual completed workstation rather than on an open test bench.

What I like:

The biggest surprise is that this is not simply a slow generic SSD hiding behind optimistic marketing numbers. It uses a legitimate high-performance InnoGrit Gen4 controller and delivered roughly 6.4GB/s reads and 6GB/s writes in my system.

The 4TB capacity, single-sided PCB, good temperatures, and strong large-file performance make it particularly attractive for things like AI models, game libraries, large datasets, and other read-heavy storage.

What remains unknown:

The main unanswered question is long-term reliability. This is still a relatively obscure brand, the drive presents itself generically to Windows, and while the listing specifies 3D TLC NAND, I could not independently identify the actual NAND manufacturer.

I would therefore still keep proper backups of anything important—which is good practice regardless of SSD brand.

Bottom line:

So far, this drive has exceeded my expectations. The controller is an InnoGrit IG5220, the hardware is single-sided, temperatures are excellent, SMART data is clean, and performance remained strong even with a 64GiB 3 benchmark.

If long-term reliability holds up, this appears to be a very capable 4TB PCIe 4.0 NVMe SSD. For my intended use as a large AI-model and high-speed storage drive, I am very satisfied with it so far.