The hub supports 100 W of power to handle monitors and other particularly demanding devices. You will also have USB-C and USB-A connectors to connect old and new peripherals, not to mention the HDMI output for video up to 4K at 30 frames per second. Even the casing is durable, with IP68 water and dust resistance as well as an aluminum "wave" design that improves grip and reduces scratches.
Sony will sell the MRW-S3 in the fall alongside the new SF-M Tough SD cards (64GB, 128GB and 256GB capacities) to take advantage of the hub speeds. The tech giant has not provided a price, but it might not be an obstacle. If you have a high-end mirror-less or high-end DSLR camera that can seriously charge the fastest card readers, the price of the USB hub will seem trivial.