Hypertec ProDockLite Gen2 Universal USB-C Dock with 4K HDMI or 1080p VGA Single Screen, USB 3.0, Gigabit Ethernet, SD Reader, 3.5mm Audio & 100W Power Delivery

I recently bought one of these to use with my Dell laptop that has USB-C charging.This is a well built quality product but I've found a couple of small drawbacks;1. 4K resolution is limited to 30Hz (a direct cable would do 60)2. Power delivery is a minor problem, with a 65W USB-C dell supply connected it saps 15W leaving 50W for the laptop which is less than it should have and triggers an adapter warning on boot. With my 90W USB-C PD Anker GaN plug, it's not recognised at all and doesn't even function.It's still a decent product despite these issues and I suspect nearly All devices of the same types would have the very same issues.