Free Express Shipping! Nextorage 512GB NX-B2SE Series CFexpress 2.0 Type B Memory Card 512GB Storage Capacity, Max Read Speed: 1950 MB/s, Max Write Speed: 1900 MB/s, Min Write Speed: 800 MB/s, Records 8K 30p and 4K 120p Video, Records DCI 4K 60p and 6K...