I've tested this USB grabber with my setup of Rpi 3B+ with HyperBian alpha7 and it works great. The advantage of this device is that is has an internal HDMI loop so it eliminates the need for an HDMI splitter. Less parts is less clutter, right? It is powered solely by the USB port's 5V, unlike other USB grabbers that can utilize the 12V from HDMI. Also, unlike the term 'loop' might suggest, as soon as USB power is removed, the HDMI connection is lost.