Western Digital Demos SD Card with PCIe x1 Interface
 

BARCELONA, ESP — Western Digital demonstrated an experimental SD card featuring a PCIe Gen 3 x1 interface at Mobile World Congress. Meanwhile, the SD Card Association is calling upon the industry to adopt PCIe as a standard interface and to support the development of a complete SD PCIe standard.

https://www.anandtech.com/show/12487...pcie-interface