When hard disk drives initially made their way into microprocessor-based computers, they used magnetic platters up to 8 inches in diameter. Because that was the largest single component inside the HDD, it defined the minimum width of the HDD housing—the metal box around the guts of the drive.
When solid state drives first started replacing HDDs, they had to fit into computer chassis or laptop drive bays built for HDDs, so they had to conform to HDD dimensions. However, there’s no requirement for the SSD to match the shape of a typical HDD form factor and that's becoming more obvious as of late.
The Samsung 840 Evo is the new member to its highly-regarded SSD 840 range. The 840 EVO sports 19nm 128Gb TLC NAND, proprietary firmware and the latest-gen multi-core MEX controller. The 840 Evo features in 120GB and 250GB capacities speeds of 520MB/s, and in its top capacities of 500GB, 750GB and 1TB registers 520MB/s.
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