SanDisk SDSDXPA-064G-X46 Extreme PRO 64GB SDXC UHS-I Card

The SanDisk Extreme PRO SDSDXPA-064G-X46 is a 64GB SDXC memory card built for photographers and videographers who need dependable, fast storage in the field. With write speeds reaching up to 95MB/s and read speeds up to 90MB/s over the UHS-I bus, it keeps up with rapid continuous burst shooting in DSLRs and mirrorless cameras, minimizing buffer wait times between bursts. The UHS Speed Class U3 rating guarantees a minimum sustained write speed of 30MB/s, which is the threshold required for recording 4K Ultra HD video without dropped frames.

Durability is a key part of the Extreme PRO design. The card is rated shockproof, waterproof, and X-ray proof—practical protections for photographers who work outdoors, travel frequently, or shoot in demanding environments. At 64GB, the card offers a useful balance between capacity and cost, holding roughly 1,600 RAW images from a 24MP camera or around 40 minutes of 4K video depending on the codec and bitrate. It's worth noting that this is a UHS-I card, so while it performs at or near the ceiling of the UHS-I specification, it won't benefit from the higher transfer rates available in UHS-II card slots.