SD Express and SDUC: Memory cards up to 128 TB and transfers at 985 MB/s

The dimensions of the images and, more importantly, of the videos grow and the memory cards are ready to be ready for future increases: the SD Association has announced a new standard and a new type of cards that will meet the needs of users in the next years. The ads are part of the new SD 7.0 specifications.

Let’s start with the new SD cards Ultra Capacity (SDUC), backward compatible with the previous hardware and standards, which bring the maximum capacity from 2TB of SDXC cards to well 128TB. The new SD Express standard instead incorporates the PCIe and NVMe interfaces and focuses all on speed: the maximum transfer speed passes from 624 MB/s of the current UHS-III to 985 MB/s. We will be able to find the new EX mark on the SDHC, SDXC, SDUC memory cards to testify the fact of being certified according to the new standard.

In the video presentation of the new specifications, the SD Association goes so far as to say that with the new characteristics of capacity and transfer speed guaranteed by the PCI Express and NVMe interfaces, the new SD are candidates to become real ” removable SSD”. Also on the characteristics of backward compatibility, which were one of the keys to the success of this type of memory cards.

Of course, depending on the combination of newer and older cards and hardware, the transfer speeds may vary according to the maximum data declared: the above scheme allows you to have at a glance the maximum speeds reachable in different conditions.