The machine is excellent and there are also YouTube videos showing it working properly. Apart from the "plastic" aspect of the case, which makes it look cheap, but doesn't bother me because it has exceeded my expectations, I was incredibly disappointed by the fact that it does not come with a CD or USB stick with drivers and you have to find them yourself. Even the store where I bought it didn't help me, they just told me to search on the internet (as if I didn't know how to do that in the worst case scenario).
So, to save you the trouble, in this specific model (875_OTB) you can download the drivers in a zip file from the address www.motbsid.com. However, for some reason, the zip files don't work, so I found the following link http://www.onsite-computers.co.uk/all-in-1-docking-station-drivers.html and the file is called 875_875c_875d_875u3_876u3_890u3_885_otb.rar, which contains the PCCloneEX program for tasks with this particular device, which you can also find here in a more complete version http://www.gotofnet.com/ANSI/link.php?filename=download/Tools/PCClone/index.htm (although there is also an unlocked version on torrents) ;-)
Also, be careful with the pins on the cards (SD, etc.) because some of them need to be inserted upside down to be read!!!
Happy cloning! lol