Thank you for viewing. I purchased this item from an electronics retailer and used it for about two months. After that, I used it less frequently and have kept it stored at home. As this is a used item, returns and exchanges are not possible. I will check the operation before sending it, but I cannot accept claims such as the item not working upon arrival. There are signs of use on the product, so please understand this before purchasing. Please refrain from price negotiations. The price will fluctuate from time to time, so please purchase at your own convenience. SanDisk Extreme Portable SSD with 1TB of storage, a design convenient for carrying. - Brand: SanDisk - Model: Extreme Portable SSD - Model Number: SDSSDE61-1T00 - Storage Capacity: 1TB - Accessories: USB cable Type-C