What is 3D NAND SSD?

3D NAND is a type of non-volatile flash memory in which the memory cells are stacked vertically in multiple layers. The design and fabrication of 3D NAND memory is radically different than traditional 2D — or planar — NAND in which the memory cells are arranged in a simple two-dimensional matrix.

Is WD Green SSD SLC?

WD Green SSDs have 540 MB/s read and 430 MB/s write speeds along with SLC caching technology that enables burst write performance to boost your daily computing activities. This SATA-based drive is 7mm high and fits into a 2.5″ drive bay of your notebook, desktop, or external storage device.

Do SSDs need power to retain data?

SSDs will not lose data when run out of power. The SSD uses NAND Flash as the storage medium, this can prevent SSD from losing data when it is not powered for a long time. Therefore, even if the SSD is not powered for a long time, data loss will not occur.

Why is WD Black expensive?

WD Black is one of the more expensive options due to its high performance. WD Red is the Network Access Storage (NAS) drive.