Thank you for viewing. This is the ProGrade Digital "COBALT" series, their top-of-the-line SD card. I am selling it to organize my equipment. The capacity is 64GB, but it is a high-end model that uses SLC memory and supports Video Speed Class "V90". In addition to the blazing-fast specifications of a maximum read speed of 300MB/s and a maximum write speed of 250MB/s, it is also characterized by its ability to maintain speed even with continuous writing. This is a professional-grade card that is ideal for high-speed continuous shooting with high-pixel cameras and for shooting 4K/8K videos. 【Product Details】 ・Manufacturer: ProGrade Digital ・Series: COBALT ・Capacity: 64GB ・Standards: SDXC, UHS-II, V90, U3, C10 ・Transfer Speed: 　- Read: Up to 300MB/s 　- Write: Up to 250MB/s 【Condition】 After purchasing new, I have stored it for use with a sub-camera, and its usage frequency is low. ・There is almost no wear on the terminals or damage to the exterior, and it is in a clean condition. ・Operation has been confirmed, and it has been formatted. 【Shipping】 To prevent static electricity and shock, I will put it in an SD card case and pack it with bubble wrap, and ship it via anonymous delivery services such as "Nekopos". How about it for those who want to get a reliable COBALT at a great price? Instant purchase is OK! #ProGradeDigital #ProGrade #SDCard #COBALT #64GB #UHSII #V90 #Camera #HighSpeedContinuousShooting