4TB, 2.5 Inch SSDs For Consumer Devices

2.5 inch ssd

First 4-bit high-capacity consumer SSDs coming soon

Samsung has announced the mass-production of the world’s first four-bit or quad-level cell (QLC) SATA solid-state drives (SSDs) for consumers. QLC technology stores four bits per SSD cell, thereby allowing more capacity on the same storage space.

The new 4-bit SATA SSD will herald a massive move to terabyte-SSDs for consumers, the company said.

First 4-bit SSDs For Consumer Devices


Utilising 1-terabit (Tb) V-NAND technology, the chip is expected to bring a new level of efficiency to consumer SSDs.

The new chip will also help in the production of a 128GB memory card for smartphones that will lead the charge toward higher capacities for high-performance memory storage.

Samsung will launch several 4-bit consumer SSDs later this year with 1TB, 2TB, and 4TB capacities in the widely used 2.5-inch form factor.

Typically, as data stored within a memory cell increases from three bits to four, the chip capacity per unit area would rise and the electrical charge (used to determine information from a sensor) would decrease by as much as 50 percent, making it considerably more difficult to maintain a device’s desired performance and speed.

However, Samsung claims that its 4-bit 4TB QLC SATA SSD maintains its performance levels at the same level as a 3-bit SSD, with a sequential read speed of 540 MB/s and a sequential write speed of 520 MB/s. They will also come with a three-year warranty.

The company will also provide M.2 NVMe SSDs for the enterprise this year and begin mass production of 4-bit fifth-generation V-NAND.

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