[QUOTE=SeÃ¡n;2657463]As for as storage density goes, flash is way ahead. For example, it’s possible to fit 6 x 6 x 6 (=216) MicroSD cards within the physical size of a 2.5" 7mm HDD. 64GB MicroSD cards are already on the market, so 216 of these would give 13.5TB.
As for standard 3.5" form-factor, 9 x 9 x 25 (=2025) MicroSD cards would fit, giving a potential capacity of 126.5TB. [/QUOTE]
Uh, I doubt that’s possible in a real world SSD right now given the number of other factors to consider. You forget the need of a PCB to link all those chips together, a controller, interface (I/O) ports, and the quality of the NAND flash used (SD card NAND is rather cheap and doesn’t offer the same reliability or speed of MLC NAND flash used in today’s SSDs).
As for the TDK 2 TB platters, nice. It might mean 4 TB to 8 TB HDDs will be available to purchase in a next few years? Given most high density HDDs consist of 2-3 platters, this would mean a 4 TB HDD (2 platter) or even a 8 TB HDD (4 platters).