Samsung SM951 MZ-HPV5120 - solid state drive - 512 GB - PCI Express 3.0 x4

The Samsung SM951 series use the PCI Express 3.0 x 4 and feature Samsung UBX 3-core controllers that are paried with 16 nm MLC NAND Flash memory. This combination on the 512 GB sample is good for sequential read speeds of up to 2150 MB/s and sequential write speeds of up to 1500 MB/s. The peak random 4K read/write performance is placed at a respectable 90k/70k according to information that is available online.