MST Feature is supported by the OS so there’s no such thing as a driver for the CSV-5200.
Also not sure what an HD 6470 M is but i suspect it is a GPU use in a Notebook.
Normally HD 6000 series grpahics does have DP1.2 output, however sometime Notebook manufacturers limit the amount a external screens you can connect. So please check that with the Notebook vendor.
A Displayport 1.2 output has enough bandwidth to out out
1 x 3840×2160 at 60Hz (24bits)or
2 x 2560×1440 at 60Hz (24bits) or
4 x 1920×1080 at 60Hz (24bits)
Again this could be limited by the Notebook vendor.
An MST Hub is an active device, the CSV-5200 will be powered by connecting the USB connector (please connect this to a native usb port of the system so you are sure it can actually provide power) and screens con be connecte dto the HUB with “normal” or “passive” cables.
First make sure that in Windows the screen is recognized (sometime the screens need to be “activated / enabled” manually in windows)and in correct Resolution and frequency (and color depth) before configuring Multi Monitor setups like Eyefinity.