Specification: Up to 550 MB/s read; 500 MB/s write QLC NAND flash memory Engineered with a RAID engine and LDPC (Low-Density Parity Check) coding to ensure data integrity; built-in SLC caching technology for exceptional transfer speeds Supports DevSleep ultra low power state, S.M.A.R.T., TRIM, and NCQ commands Download the SSD Scope software from Transcend’s official website Item Weight 1.59 ounces Product Dimensions 23.62 x 23.62 x 33.46 inches Item Dimensions LxWxH 23.62 x 23.62 x 33.46 inches Color 1TB Flash Memory Size 1 GB Hard Drive Interface Raid Batteries 1 Lithium Ion batteries required.