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Western Digital clarifies rumor that the Xbox Series S|X SSD is not PCI Express 4.0

Western Digital says the SN530 in the Xbox Series S|X is a custom model with an ASIC supporting PCI Express Gen 3 x4 and Gen 4 x2, answering the PCIe 3.0 rumor.

After the YouTuber Rato Borrachudo took apart the Xbox Series X and found the model of the internal SSD used by the console, some questions arose based on the specifications on the SSD manufacturer’s website… the site lists the model used by the Xbox Series X (SN530) as PCI Express 3.0 and not 4.0 as Microsoft said.

With that information in mind, many suspected that the company had lied about the technology used in the SSD… well, the SSD maker itself (Western Digital) came forward to say that although the model in the console really is the SN530, the specifications of the two are different, since the SN530 used by Microsoft is a custom model with an integrated circuit (ASIC) that supports PCI Express Gen 3 x4 and PCI Express Gen4 x2 and a maximum speed of 3.938GB/s (uncompressed).

The SSD used in the Xbox Series S|X reaches 2.4GB/s with uncompressed data and 4.8GB/s with compressed data, which means that in theory the Xbox Series X SSD could reach an even higher uncompressed data speed than the current one, up to a maximum of 3.9GB/s (uncompressed) and an even higher compressed data transfer speed… 1.4GB/s more than its current speed in the console.

Source: Tweaktown

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