OthersUnlike the existing planar NAND chips, 3D NAND Flash is a Type of Flash Memory in which the Memory cells are stacked vertically in multiple layers, Transcend SSD230 is equipped with a DDR3 DRAM cache that provides an incredible 4K random read and write performance of up to 340MB/s, In addition to blazing-fast transfer speeds, the SSD230 is engineered with a RAID Engine and LDPC (low-density Parity check) coding, a powerful ECC algorithm, in order to keep your data secure., With full support of SATA Device sleep mode (DevSleep), the SSD230 can prolong notebook battery life by Intelligently shutting down the SATA interface when it is not in use