It's slower than HDD.

There was an alarm report from a user on Reddit who went by the name xox-lover, the latter finding that the SSD purchased as the Samsung 990 PRO, 2TB capacity, was fake. Even initially, Windows and the general monitoring program viewed it as a genuine SSD.

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This user indicates that he bought such an SSD from a store that looked reliable and reasonably cheaper than the market. After installing it, the drive was detected as a Samsung 990 PRO as usual in both Windows and CrystalDiskInfo, which shows that it is NVMe. It has firmware with health status. Good, so I didn't suspect anything.

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But he found the first anomaly: the link speed was expressed as PCIe 3.0 x4 instead of PCIe 4.0, according to the 990 PRO specification, and at the start of use, the anomaly became very clear. Large file transfers were only about 20 MB / s read and 9-10 MB / s write, or slower than HDD at about 100-120 MB / s.

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When tested with CrystalDiskMark, it produces similar results, which are significantly slower than the performance that should be achieved with an NVMe SSD. Usually, PCIe 3.0 should reach speeds of around 3,000 MB / s and PCIe 4.0 of up to 7,000 MB / s.

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Despite initial modifications, checking the Czech BIOS driver and removing the new SSD, the problem remained the same until Samsung Magician, Samsung's official software, checked and found that this SSD was identified as a fake (Not Genuine).

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This case reflects that today's counterfeit SSDs are more realistic, so users should be cautious, choose to buy from a reliable source, be wary of unusually cheap goods, and test with software from the manufacturer immediately after purchase, so as to hedge against long-term critical information.

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Source: videocardz

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