With up to 3400 MB/s, the internal hard drive is up to 6 times faster than other SATA SSDs. It is also 25 times faster than already installed notebook hard drives. The NVME SSD is designed for better energy management. It also improves durability and endurance. The internal SSD hard drive is equipped with SanDisk nCache 3.0. Modern algorithms and multi-stage caching contribute to increased endurance. The M.2 NVME SSD is quick to install. Thanks to the SanDisk SSD dashboard, it is easy to monitor driver health and performance. Box contents: SanDisk Extreme PRO M.2 NVMe 3D SSD Internal Hard Drive 500 GB (Up to 300 TBW, 3D NAND Technology, 3400 MB/s Read Speeds, 410,000 IOPS)