Works out of the box. Nice soft cables.
Received shipment in 16 days from China to The Netherlands. The goods came packaged in plastic envolop with plenty of bubble wrap. Each splitter was individually packaged in plastic zip lock bag. I just tried one of the splitters. It seems to work with a Raspberry Pi 4. The casing of the splitter does warm up a bit (about 28 degrees Celcius after about 15 minutes of idle) . This is to be expected. )For now I am happy. I will update if there are any issues. In short I would recommend seller for speed of delivery (15 days). Received a small tokern of appreciation which was nice.