Thanks for reviewing this item! I’ve been using this charger for almost 1 year now and it’s a great charger (I rarely have to charge 5 devices at the same time, but more like 2-3 devices usually, but the extra spacing allows me to connect USB meters to the 3 USB slots I’m using/measuring)…

The 3x 5v/2.4A ports appear to have cable compensation alright (voltage will go up or compensate for higher-resistance cables).
The 2x QC3 ports doesn’t appear to compensate.

I notice (using ZY1276 USB meter) that when idle, the top QC3 port voltage is a stable 5.03v while the second QC3 port voltage is a stable 5.00v when no load connected except the USB meter). I wonder if it’s the same on yours?