SLC (Single-Level Cell) NAND flash memory chip is being used to make enterprise related SSD that’s why it is more expensive. SLC NAND able to give high performance data access and long-term endurance in challenging enterprise I/O environments. Opposite to, MLC (Multi-Level Cell) NAND is cheaper that can deliver slower write speeds and higher power consumption. But it ensures I/O performance and long-term reliability. Micron has brought a new branded enterprise SATA SSD called P400e where MLC NAND has been used. The P400e’s 50GB, 100GB, 200GB and 400GB is now available at popular online store.