Intel's direct explanation is that the back is like that. It is because it is aluminum. It is caused by oxidation, so that each oxidized form may be different, and there will be traces of grinding. Intel uses a halogen-free process, the back looks like a totem, but it is actually not worn, it is for environmental protection. INTEL DC S3700 SERIES 800GB 2.5 6GBPS SATA SSD - SSDSC2BA800G301.
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