In a week we be leaving to spend a little over three months in Europe and North Africa. We each only take a day pack and a carryon when we go overseas, so any items we take must be small in size and low in weight, This 4 port mini usb hub works great. Attached to the single usb port on my Surface 4, I can have my portable SSD drive, camera or SD card reader and my headphone/microphone in use at the same time to handle any photo editing as well as dictating blog posts using Dragon speech recognition software.
The hub is very small and weighs next to nothing. We can also use it to charge multiple devices overnight from the single plug we often find in hotel rooms if needs be.