Build-in NVMe PCIe Gen3x2 SSD inside. 128GB memory size(Windows output binary will be smaller than this), bus interface: NVMe PCIe Gen3x2 Read write speeds of up to 200-800MB/s, offer low latency during high-speed recording and enhance workflow, performance may be lower depending upon host device, usage conditions, and other factors Designed for next-gen video/photo cameras such as DSLR, cinema, and mirrorless cameras, supports smooth RAW 4K/8K video. Captures flawless RAW videos and photos in breathtaking 8K Ultra HD resolution CFexpress Type-B card 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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.