To ensure the fastest speed of RAW photos being copied, I invested heavily in memory cards, such as SD 64GB, 32GB, and 128GB Extreme Pro cards with a read speed of 300mb/s. When using the Nikon z6ii, I typically use two cards of the same size, such as a 128 GB SD card and a 128 GB CF card. However, I mostly use 64GB SD and 64GB CF cards.