According to Anandtech , Western Digital's new SD memory card complies with the Secure Digital Ultra Capacity (SDUC) standard and uses the Ultra High Speed-I (UHS-I) interface. The memory card achieves Class 10 speed, which means a minimum write speed of 10 MB/s and a maximum data transfer speed of up to 104 MB/s. The memory card complies with the Video Speed Class V30 standard, which means the minimum sequential write speed does not drop below 30 MB/s.
SanDisk Extreme Pro 4 TB is the largest capacity SD card ever
Western Digital Western Digital has not provided information on the type of NAND memory used in the card or the price of the product, but with the SanDisk Extreme Pro 1TB priced at $140, the amount of money users will spend on a 4TB memory card will not be cheap. According to Western Digital, the capacity and speed of the memory card allow it to record long videos in 4K and even 8K format.
Western Digital also introduced SanDisk memory cards in SD and microSD formats with capacities of 128 GB and 256 GB, promising data transfer speeds up to 4.4 times faster than Western Digital's fastest UHS-I microSD memory cards. The new products are aimed at professionals who work with large volumes of high-resolution video.
The company also introduced the SanDisk Extreme PRO memory card in SDXC and microSDXC formats with a capacity of 2 TB.
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