Lexar 512GB Professional GOLD CFexpress 4.0 Type A Memory CardThe Lexar 512GB Professional GOLD CFexpress 4. 0 Type A Memory Card delivers ultra fast PCIe 4. 0 performance with read speeds up to 1800 MB s and write speeds up to 1650 MB s, enabling seamless 8K raw video recording and high speed burst photography for professional creators who demand speed, reliability, and durability. Key Features: 512GB storage capacity PCIe 4. 0 interface for next generation performance Max read speed up to 1800 MB s Max write