This is a ProGrade CFexpress card. I am selling it to organize my equipment. I used it for about a year after purchase, but it has no issues and is working properly. The exterior has few scratches or stains and is in good condition. - Brand: PROGRADE - Storage Capacity: 1TB - Maximum Transfer Speed: 1700MB/s - Minimum Transfer Speed: 1300MB/s - Standard: CFexpress 2.0 Type B