Replacement for Fanxiang S770 SSD 7400MB/s PCIe 4.0 M. 2 Nvme 500GB 1TB 2TB 4TB Hard Drive Internal Solid State Drive for PlayStation 5 Desktop. 2 2280 NVMe PCIe 4.0×4. Storage Medium:3D TLC NAND Flash. S770-500GB:Sequential Read Speed up to 7400 MB/s;Write Speed up to 2750 MB/s. With 1GB DRAM Cache. S770-1TB:Sequential Read Speed up to 7400 MB/s;Write Speed up to 5400 MB/s. S770-2TB:Sequential Read Speed up to 7400 MB/s;Write Speed up to 6800 MB/s. With 2GB DRAM Cache. S770-4TB:Sequential Read Speed up to 7400 MB/s;Write Speed up to 6800 MB/s. With 4GB DRAM Cache. Supported System:For PS5/Windows 7/8/10/11. S770 SSD x 1. EU, US and Australia warehouse. On PS5, S770 will not reach the maximum speed marked 7400MB/s, and the estimated reading speed of S770 is 6500MB/s. The capacity of storage products is 1TB=1000GB, so after plugging into the computer, you will find that the actual capacity is lower than the rated capacity, which is a normal phenomenon. The rated speed of the product needs to be matched with the corresponding motherboard to basically achieve it. If you find a speed problem, please contact our customer service first.