USB-C is power, display, and data in one hole. Hubs that treat it like “extra USB-A” are how ports die. I’ve seen more dead charging jacks from bad docks than from cable wear.
What goes wrong
- No PD passthrough, so you unplug the hub every time you charge — or worse, the hub tries to charge from a weak brick and browns out the board.
- DisplayPort alt-mode that almost works, then a black screen when you close the lid.
- Unshielded HDMI on a hub that also carries 20V. Cheap layouts fail in interesting ways.
Buy for the port you have
If the laptop charges on USB-C, the hub has to pass that power through at the wattage the machine expects. 65W laptop on a hub that only passes 30W will charge slow, or not at all, and it may cycle the battery. HDMI plus Ethernet plus a disk: get a branded dock with a published PD number. A four-port dongle with no wattage on the listing isn’t a bargain.
On the bench
USB-C hub with published PD passthrough
Passthrough wattage first, then HDMI, then extra ports. 100W-class covers most non-workstation laptops. If the listing won’t say the number, I keep walking.
- Match HDMI vs DisplayPort to your monitor.
- One disk-heavy bus-powered hub plus a spinning HDD is how you get disconnects. Powered docks exist for that.
Verdict
Laptop charges on USB-C? The hub’s PD number is the spec. Everything else is convenience. A cheap unspec’d dongle isn’t a bargain if it takes the port with it.