The hub supports sending 100W of power to handle monitors and other highly demanding peripherals. You will also have USB-C and USB-A connectors to connect new and old devices, not to mention HDMI output for videos up to 4K at 30 frames per second. Even this case is tough, with IP68 dust and water resistance and an aluminum "wave" design that improves grip and reduces scratches.
Sony will sell the MRW-S3 in the fall along with the new SF-M Tough SD card (in capacities of 64GB, 128GB and 256GB) which can utilize hub speeds. The technology giant hasn't given a price yet, but that might not be an obstacle. If you have a mirrorless camera or a high-end DSLR that can seriously burden the fastest card reader, the price of a USB hub will seem trivial when compared.