A CFexpress type A memory card can be fitted into the CFexpress adapter, which can be used in a CFexpress type B slot of a device. Thus, the adapter converts the CFexpress type A memory card into type B There is no card or capacity inside, You need to put in the Type-A Card yourself, Bus Interface: NVMe PCIe Gen3x2, Form Factor CFexpress Type-A to Type B Read write speeds of up to 1000-2000MB/s, offer low latency during high-speed recording, and enhance workflow, Performance may be lower depending upon SSD, host device, usage conditions, and other factors Designed for next-gen video/photo cameras such as DSLR, cinema, and mirrorless cameras, Enables smooth, RAW 4K/8K video support. Captures flawless RAW videos and photos in breathtaking 8K Ultra HD resolution CFexpress card kit is shockproof, anti-magnetic, moisture-proof, X-ray proof, cold and heat resistant, tough and durable, resistant to bending, and able to withstand extreme environments