we found a ‘S’ stamped over Micron logo on all the flash devices (see the image to the left).

This indicates the device is “off spec” product because it failed some parameter of Micron’s full performance and/or quality specification testing.

“Off spec” memory is typically used in low-level applications such as toys, offering considerable cost savings over Tier 1 level to an SSD manufacturer.

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簡單直譯：我們發現顆粒上有鎂光的S標記，表示它沒通過鎂光某些效能和品質檢測，是不合格顆粒，

通常這種顆粒應用在低階，如玩具 ，可大幅減低ssd製造商的成本

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雖然orz自己爆料隨身碟才可能用白片，不過現在…

ps. Tier 1 level的意思是最好的顆粒？