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SanDisk Extreme SSDs are “worthless,” multiple lawsuits against WD say
(arstechnica.com)
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Since 2016
There's basically duopoly in storage domain. WD and Seagate own most of the market. Although in SSD there are some options like Samsung, Corsair, Sabrent, Crucial etc.
Toshiba has like 20% of the HDD market, but your point remains.