Boost productivity or design creatives effortlessly by upgrading to PCIe Gen 4.0 SSDs with up to 4,150 MB/s (2) read speeds (1TB and 2TB (1) models) Make light work of heavy files with Western Digital’s nCache 4.0 technology enabling blistering fast copying of large files or media assets With up to 2TB (1) of storage on a slim M.2 2280 form-factor, applications, data, and media such as photos, 4K videos, and music can be stored on the same drive Keep creating uninterrupted when you’re in the zone or on the go with low-power storage to maximize your laptop’s battery life NVMe delivers application responsiveness while multitasking between projects with large and complex workflows Rated up to 900TBW (3) (2TB (1) model only) with Western Digital’s 5-year limited warranty (4) for peace of mind reliability (1) 1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment. no damage no retail box functional