Crucial P3 500G/1TB PCIe 3.0 NVMe M. 2 2280 Internal SSD. SSD Capacity: 500GB, 1T. Size: 80mmx22mm, it is compatible with most computers and desktops. 1TB PCIe 3.0 NVMe M. 2 2280 Form Factor Internal SSD. SSD delivers load times and data transfers that are 6x faster. SATA drives and 22x faster than HDDs2. Impressive read/ write speeds up to 3500/3000MB/s. P3 can hold massive amounts of files, documents, photos, videos, games. P3 NVMe SSDs are built with high-quality Micron Advanced 3D NAND. Typical I/O performance numbers as measured using CrystalDiskMark with command queue full and write cache enabled. Fresh out-of-box (FOB) state is assumed. For performance measurement purposes, the SSD may be restored to FOB state using the secure erase command. System variations will affect measured results. Some of the storage capacity is used for formatting and other purposes and is not available for data storage. 1GB equals 1 billion bytes. Not all capacities available at initial launch. Hard Drive Rotational Speed. Item Dimensions L x W x H. 8 x 2.2 x 0.2 centimetres. 1 TB Solid State Drive. 8 x 2.21 x 0.23 cm; 17.01 Grams. Woking better than my old mvme drive…. Seems to be genuine. I use it with an external case as a very fast usb-stick.