I am selling this due to a system change. I purchased it new this year. It has been used very little, so it is in good condition. There are no errors or malfunctions whatsoever. Thank you. This is a 256GB A2 SE model memory card that enables high-speed transfer. - Capacity: 256GB - Speed: Max transfer speed 1900MB/s, Max write speed 1700MB/s, Max read speed 400MB/s - Model: A2 SE - Brand: Nextorage Thank you for looking.