Source: http://gizmodo.com/5944856/samsung-building-128gb-flash-memory-chips-for-next-years-superphones
There might just be a 128GB memory option when it comes to upgrading to the Galaxy S4 next year or the S5 the year after, thanks to Samsung now mass producing 128GB memory chips for use in mobile devices.
Samsung's newest 128GB eMMC NAND chips read data at 140MB/s and can write at up to 50MB/s, plus they're designed to fit the same slimline form factors as its current 16, 32 and 64GB memory chips. No mention's been made of any devices that'll use them yet, so keep your eyes open for a whole new level of onboard storage complete with unprecedented RRPs. [Samsung via Techradar]
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