Samsung 870 QVO 4TB V-NAND, 2.5'. 7mm, SATA III 6GB/s, R/W(Max) 560MB/s/530MB/s 1,440TB 3 Years Warranty Samsung 870 QVO 4TB 2.5' SATA III 6GB/s 4-Bit MLC V-NAND SSD MZ-77Q4T0BW - Capacity: 4TB - Form Factor: 2.5' - Interface: SATA 6GB/s, Compatible with: SATA 3GB/S and SATA 1.5 GB/s - Controller: Samsung MKX Controller - Sequential Read (Max): 560MB/s - Sequential Write (Max): 530MB/s - Samsung V-NAND 4bit MLC - Cache Memory: Samsung 4GB Low Power DDR4 SDRAM - Random Read/Write: 98,000/88,000 - MTBF: 1.5 Million - MZ-77Q4T0BW - 3 Years Limited Warranty Form Factor 2.5 inch Capacity 4TB TBW 1,440 Sequential Read Speed Up to 560 MB/sec Sequential Write Speed Up to 530 MB/sec Dimensions (WxHxD) 100 X 69.85 X 6.8 (mm) Weight Approx. 54g Storage Memory Samsung V-NAND 4bit MLC TRIM Support TRIM Supported S.M.A.R.T Support S.M.A.R.T Supported Encryption Support AES 256-bit Full Disk Encryption,TCG/Opal V2.0,Encrypted Drive (IEEE1667)