This lot of 6 1TB SSDs includes 1 Samsung 870 EVO, 2 Samsung 860 EVO, 1 Samsung 850 EVO, 1 Western Digital SA510, and 1 Crucial MX200. All of the drives are 2.5 inches in size and are compatible with PCs. The drives have read speeds ranging from 540 MB/s to 560 MB/s and transfer rates of 500 MB/s to 530 MB/s. They all have a storage capacity of 1TB and use the SATA III interface. Additionally, the drives have varying amounts of cache, with the Samsung models having 1GB LPDDR4 and the Crucial model having 1GB LPDDR2, while the Western Digital model does not have any dedicated DRAM cache, it only has a dynamic pseudo-SLC cache.