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

08 August, 2018, 22:43 | Author: Rafael Roberts
  • Shattered hard disk

CNET editor Dong Ngo explains how SSDs work and some ways to get the longest life span out of them.

The South Korean company says it's going to start mass-producing the 4 terabyte solid state drives it first constructed a couple of years ago. Back in 2006 when SSDs were just starting to appear, the flash chips Samsung used were 70nm and stored just 4Gb allowing for a drive with 32GB of storage. Maybe you'll be able to ditch those spinning drives before long.

Setting the stage for rolling out advanced memory technology to meet the growing demand for faster, more reliable performance across a wide span of applications, Samsung has now said it began mass producing the industry's first 4-bit SATA solid-state drive (SSD) for consumers.

The new 4 TB drive is expected to be joined by 4-bit 1 TB, 2 TB and 4 TB 2.5-inch variants later in the year, with enterprise M.2 NVMe variants also in the pipe. Samsung expects mass production to start around the end of the year.


Samsung says it also hopes to use the technology to produce 128GB memory cards for smartphones.

Created to increase the capacity available from each NAND chip, QLC is a form of multi-level cell technology which allows four individual bits per memory cell - vastly increasing capacity over the company's existing triple-level cell (TLC) equivalent. TurboWrite runs a small portion of the SSD as cache to speed up drive performance. Once this has flooded the market, Samsung promises that 1TB SSDs will become much more affordable as a result.

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

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