Samsung today announced a high capacity consumer solid state drive, the 4TB version of its 850 EVO line, which will retail for $1,500. The new 850 EVO SSD uses Samsung's 48-layer high V-NAND technology, which stacks flash memory cells one atop another and stores three bits per cell.

The 2.5-in. SSD is 7mm thick, which is small enough to fit into ultra-slim notebooks. Previously, Samsung's 2TB EVO SSD was its highest capacity flash drive.

The drive also sports native AES-256-bit encryption of Samsung's TurboWrite technology, which creates a high-performance write buffer to which new data is first written.

The new SSD has up to 4GB of LPDDRC DRAM cache memory and uses the 6Gbps SATA interface. The 850 EVO has a top sequential read/write speed of 540 MBps and 520 MBps, respectively, and a top random read/write speed of 40,000 and 98,000 I/Os per second (IOPS) when TurboWrite is initiated.

Teh drive has a 1.5 million meantime between failures (MTBF) rating and comes with a five-year limited warranty.