Designed for capturing raw 8K, 6K, and 4K video, the 240GB CFexpress 4.0 Type B Gold Memory Card from ProGrade Digital provides read speeds of up to 3100 MB/s, which helps to quickly offload content to your computer, and write speeds of up to 1600 MB/s. Additionally, the Gold has a minimum sustained write speed that is guaranteed not to drop below 700 MB/s. This card is well suited to capture 8K, 6K, and 4K video, raw photos and continuous image bursts, and more.