https://www.samsung.com/semiconductor/minisite/ssd/product/consumer/870evo/ World #39;s No.1 Flash Memory Experience the superior performance and reliability that you can only get from the world #39;s number one brand for flash memory since 2003. All firmware and components, including Samsung #39;s world-renowned DRAM and NAND, are produced in-house, allowing end-to-end integration for quality you can trust. * Source : 2003 - 2019 IHS Markit data : NAND suppliers #39; revenue market share Samsung SSD 870 EVO 500GB SATA Model : MZ-77E500 Model Code : MZ-77E500BW Form Factor : 2.5 #34; SATA Capacity : 500GB Sequential Read Speed : Up to 560 MB/s Sequential Write Speed : Up to 530 MB/s Interface : SATA 6 Gb/s Interface, compatible with SATA 3 Gb/s amp; SATA 1.5 Gb/s interface Dimension : 100 X 69.85 X 6.8 (mm) Weight : Apporx. 45.0g Storage Memory : Samsung V-NAND 3bit MLC Controller : Samsung MKX Controller Cache Memory : Samsung 512 MB Low Power DDR4 SDRAM Warranty 5 Years