Tested, working and formatted. All purchases will come with serial number and drive health. Can be used inside a laptop to give you better boot speed, inside a desktop, or even used an an external drive. The Verbatim 512GB Internal 2.5" SSD Solid State Drive is a high-capacity storage solution designed for laptops and PCs. With its SATA interface and SSD drive type, it offers fast data transfer speeds and reliable storage for your files. The Verbatim Vi550 S3 model provides 256GB of storage capacity, making it ideal for storing a large amount of data and applications. This product is a great choice for anyone looking to upgrade their computer's storage capabilities with a reliable and well-known brand like Verbatim.