The product is a 256GB SATA 2280 NVMe M.2 SSD with Windows 11 Pro UEFI installed and activated. It is compatible with laptops and PCs, and offers a read speed of 550MB/s. The solid-state drive is of various models and brand, with a storage capacity of 256GB. The unit has a 2.5-inch form factor and interfaces with M.2, NVMe, and SATA/NVMe. It also has a cache of 256 MB and is manufactured in the United States. This SSD provides fast transfer rates and storage format for HDD and SSDPlease make sure your system meet Microsoft minimum requirements to run Windows liThis version of Windows 11 Pro is run on the UEFI format If your system is set for legacy and you don't know how to change it Please don't purchase this drive