This is an external SSD from Buffalo. I purchased it at Yamada Denki. It's a professional edition with read and write speeds of over 1000MB/s. I bought it for data storage, but I made a mistake with the compatible model. The connector can be changed to both USB-A and USB-C. It originally has Buffalo's software installed. There are no scratches or stains, but it's not new, so please refrain from purchasing if you are sensitive to this. Also, I have recorded the serial number, so I will report any swaps to the police. ~ Product Introduction ~ 【High-Performance Portable SSD】 BUFFALO's portable SSD offers 500GB of storage and achieves high-speed data transfer. Its compact design makes it easy to carry. 【Reliable Brand】 Buffalo is a reliable brand known for its data storage solutions. It offers products that can be used with confidence. 【Easy Connection】 USB connection allows for easy connection to computers and tablets. You can immediately back up and move data. - Brand: BUFFALO - Model Number: SSD-PHP500U3BA - Storage Capacity: 500GB - Type: Portable SSD - Product Information: Buffalo External SSD