Samsung Begins Mass Production of 4-Bit 4TB SSD for Consumers


'As we expand our line-up across consumer segments and to the enterprise, 4-bit terabyte-SSD products will rapidly spread throughout the entire market.

Samsung claims that the new family of 4-bit solid state drives, which will be available in 1TB and 2TB models as well, will maintain the same performance level as the 3-bit drives: a sequential read speed of 540 MB/s and a sequential write speed of 520 MB/s. Samsung, however, thinks that it's solved the puzzle when it comes to making 4-bit QLC drives a reality by using 3-bit controller and its own TurboWrite technology.

The South Korean firm revealed it's begun mass producing the "industry's first" 4-bit quad level cell 4TB SATA SSD for the likes of you and me to plonk into our PCs.

When data stored inside a memory cell increases from three bits to four, the chip capacity per unit area rises and the electrical charge that's used to determine information from a sensor decreases by up to 50 percent.

More news: Spanish Jet Accidentally Fires Missile Above Estonia: Defence Ministry
More news: The Pentagon bans the use of mobile location services for security reasons
More news: Snapchat Parent Snap Posts Its First Loss in Daily Active Users

Pricing is yet to be revealed but the new drives are expected to be significantly cheaper than the Samsung EVO series now available.

The new 4-bit (QLC, quad-level cell) SATA SSD drives are "expected to bring a new level of efficiency to consumer SSDs".

The drives will come with three-year warranties. And Samsung predicts that its new 1-terabit 4-bit V-NAND chip will enable the company to produce large capacity memory for smartphones, too. Probably not, yet. Price could be the spark that sets off the storage revolution, but at the moment Samsung isn't giving that vital piece of info away. They are also the first NVMe drives to use 4-bit QLC memory chips (Samsung will release 2.5-inch SATA drives that use QLC chips later this year).

The Samsung 4TB 850 EVO SSD is now listed on with a £1,399.99 retail price (albeit discounted to £999.99 at present).