The Microsoft Windows 10 Pro 64 Bit USB Flash Drive is a retail operating system software unit designed for use with Microsoft Windows 10. It requires a minimum of 4 GB of RAM and 4 GB of hard drive space, with a processor speed of 1 GHz. This USB flash drive comes with a lifetime manufacturer warranty, is in English language, and is compatible with Windows 10 operating systems. It is a reliable and convenient option for those looking to install or upgrade their Windows 10 operating system.