What does SATA or NVMe have to do with it? 2230 is a physical size standard, not a data transfer protocol standard!
Even though the handheld gaming PCs are doing well, the Microsoft Surface (which is just one of several brands of ultraportable using M.2 2230) is a $7Bn/year market segment. Microsoft's Surfaces aren't as successful as Dell/HP's ultraportable lineup, mainly because businesses prefer the larger OEMs to Microsoft, even so Microsoft Surface sells more units in a year than every handheld company's total sales figures to date, since they first started. Valve have sold just under 3 million Steam Decks ever, and they have about a 70% slice of the marketshare right now. That puts the market at no more than 5 million total devices, compared to Microsoft who sold 5.6 million Surface devices in 2023. Granted, not
all of them will use 2230, but most of the tablet-format devices do.
Pass, I've been buying a load of SN580's which are dirt cheap. This isn't my field of expertise though, perhaps WD are just stacking two 8Tbit NAND packages on top of each other?
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Aren't there a load of 4TB PS5-certified drives now? They need to be single-sided and include DRAM since getting the required 7GB/s without HMB support is a big ask of DRAMless offerings. Can't imagine you'd get 6 chips on a 2280 so presumably they're 4 chip designs (controller, DRAM, 2xNAND)