The capacity of the Samsung 980 Pro SSD is 500GB. This 980 PRO takes advantage of the PCIe 4.0 interface to give twice the data transfer rate of PCIe 3.0 while remaining backward compatible with PCIe 3.0 for increased flexibility. This SSD has an M.2 form factor as well as a PCIe 4.0 x4 interface. It is designed to be fast, with write speeds of up to 5,100 MB/s and read speeds of up to 7,000 MB/s, making it 2 times faster than PCIe 3.0 SSDs and 12.7 times faster than SATA SSDs. On PCIe 4.0, the 980 PRO achieves maximum speeds, which may vary in other situations. Samsung's Dynamic Thermal Guard technology maintains the temperature at optimal levels in this SSD, minimizing performance fluctuations over time, and the 980 PRO is also embedded with Samsung's cutting-edge thermal control algorithm, which manages heat on its own to deliver long-term durability and reliability. The warranty on this new Samsung 980 Pro 500GB PCIe 4.0 M.2 NVMe SSD is three years.