Samsung Starts Mass Producing 4-Bit Consumer SSDs

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You can get a ton of storage for your new laptop - but you'll probably have to pay an arm and a leg for it. Putting a 4TB SSD in the new MacBook Pro immediately adds $3,200 to the cost, for example.

Though Samsung has high hopes for this new 4TB SSD. That charge is used to read information from a sensor, so it's much more hard to maintain performance over time. Performance levels are claimed to be as good as with Samsung's 3-bit SSD, thanks to the use of a 3-bit SSD controller and TurboWrite technology. Making use of the latest 4-bit cell to pack even more data into a tiny footprint, the Samsung SATA drive will feature a 4TB capacity and reach speeds of up to 540MB/s read and 520MB/s write.

Samsung Starts Mass Producing 4-Bit Consumer SSDs
Samsung sends 4TB QLC SSDs into mass production

Samsung says the new drives will be available in 1TB, 2TB, and 4TB capacities in a 2.5-inch SATA form factor.

The hype surrounding recent 4-bit quad-level cell (QLC) NAND flash memory chip announcements has been that they will lead to bigger capacity and more affordable solid state drives.


The company says that when data stored within a memory cell is bumped up from three bits to four, maintaining optimum performance and speed becomes "considerably more hard".

The company also expects to provide M.2 NVMe SSDs for enterprises and start mass production of 4-bit 5th-generation V-NAND.


"Samsung's new 4-bit SATA SSD will herald a massive move to terabyte-SSDs for consumers", said executive VP of memory sales & marketing at Samsung, Jaesoo Han. In the upcoming 4TB drive, Samsung says that 32 of the aforementioned V-NAND chips are utilised.

Samsung hasn't announced pricing yet or precise availability beyond saying "later this year". At least there's plenty of competition in the QLC space, so hopefully we'll be pleasantly surprised by the price.


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