This is the KIOXIA EXCERIA PRO 128GB. It's a V90-compatible, ultra-high-speed UHS-II SD card. Made by Kioxia, formerly Toshiba Memory, it's a valuable, made-in-Japan memory card. I bought it, but I soon purchased a CFexpress-compatible camera, so I haven't used it much. I've tested it for functionality with a camera and PC before listing it. Please see my profile for other notes. Instant purchase is welcome. Product Description: Supports Video Speed Class 90 (V90) and UHS-II interface. This product has the performance required for 8K video recording. With a maximum read speed of 270MB/s and a maximum write speed of 260MB/s, both shooting and file transfer are faster. It achieves a high write speed of 260MB/s, making it suitable for high-speed continuous shooting, such as sports photography.