kingston M.2 2280 PCle A2000 SSD NVMe PCIe performance is provided at a much lower cost Support full security suite (TCG Opal, XTS-AES 256-bit, eDrive) Ideal for ultrabook and small PC (SFF PC) systems Upgrade your PC with up to 1TB2 storage capacity *3D NAND *XTS-AES 256 bit encryption *TCG Opal *IEEE 1667 / eDrive security About real capacity 120GB = approximately 108GB-114GB 250GB = approximately 225GB-237GB 500GB = approximately 450GB-475GB 1000GB = approximately 900GB-950GB It is calculation difference between manufacturer and your PC. Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes. Please Google “ssd real capacity” to get more information. The person pursuit of perfect is not recommended to buy. SSD Buying Tips 1:Our speed test is on the right interface 2:Real capacity: different of factory and electronic produces to lead a capacity differentce, available capacity will be about 90%-93% 3:As different platform or software, the result will be a little difference(ATTO /AS SSD) Shipping Notice (before you order) 1:When you make order in our store its means your shipping address is valid ,phone number is valid ,if it is written incorrectly please kindly make a note on the order or contact us to change in the first time ,then your parcel will be sending with no error. 2.All of the products are 100% original, and the appearance is in kind. 3.When the post contact, please check the package and the product condition well, and make a unpacking video (if you need proof lately) to help to protect your benefit .Thanks much For Russian Buyer: Russian policy, please send us ([email protected]) your full name (written in Russian) and passport number. **IMPORTANT from returns&refunds: We only ship factory-packaged and tested products, 100% working. We are not responsible for improper handling or installation by the customer. In that case, we do not accept complaints and do not resend the goods. When you place the order, it means that you have read and agreed with all the above terms and instructions. Thanks.