Where I can buy such cable? I need ot for my work.
I usually search such things online, for example on Amazon.
I bought my Mini Displayport to HDMI & VGA Adapter 4K@60HZ from https://www.primecables.ca/c-1054-thunderbolt-cable-adapters there are all variations of connectors(Mini To HDMI, Mini To DVI, Mini To VGA, Mini To DisplayPort). They provide fast speeds that are up to 2x faster than USB 3.0. Really good quality products.