Quick Answer
For most SA buyers, USB-C Power Delivery matters more day to day than display outputs, because a dock that supplies 90W to 100W charges a gaming laptop while you work, whereas a 60W dock leaves it slowly draining under load. Single-cable docks with 100W PD and one HDMI 2.0 output start around R1,400 at Evetech; Thunderbolt docks with dual 4K outputs sit closer to R3,500 to R6,000. Decide by laptop wattage first, then screens.
Why Power Delivery Comes First
A docking station's PD rating sets whether your laptop charges or just trickles. A 14-inch ultrabook is happy on 65W, but a gaming or creator laptop pulling 130W to 230W needs its own barrel charger and treats the dock purely as a hub. Check your laptop's charger wattage on the brick, then match or exceed it on the dock if you want true single-cable use.
Cable quality counts too. A full-featured USB-C cable must carry power, data, and video at once; a charge-only cable will fail to drive a monitor and confuse buyers into blaming the dock.
When Display Outputs Become The Deciding Factor
If you run two external monitors, the dock's video path matters more than PD. USB-C Alt Mode docks usually drive one 4K60 screen well but split bandwidth across two. Thunderbolt 4 docks handle dual 4K60 cleanly because they carry far more bandwidth. Confirm whether your laptop's USB-C port supports DisplayPort Alt Mode, since some budget laptops only pass data and power, not video.
FAQ
Does a higher-wattage dock charge faster?
It charges up to your laptop's accepted limit, not beyond. A 100W dock will not over-charge a 65W laptop, but it future-proofs you for a heavier machine later.
Can one USB-C cable do power and dual monitors?
Only on Thunderbolt or high-bandwidth USB4 docks. Standard Alt Mode docks reliably manage one 4K monitor plus power, and struggle with two at 60Hz.
How do I know my laptop supports video over USB-C?
Look for a DisplayPort or Thunderbolt symbol next to the USB-C port. If there is only the plain USB icon, that port likely carries data and power but not display.
dock's PD wattage to the number on your laptop charger, then count your monitors before deciding between Alt Mode and Thunderbolt.