USB-C describes the connector shape, not every feature behind it. Two USB-C ports can look the same while supporting different charging speeds, data rates and display functions.
Charging and Power Delivery
USB Power Delivery allows compatible devices and chargers to negotiate a supported power level. A laptop that needs 65W may charge slowly or not at all from a lower-power adapter. The cable must support the required power, and some high-power cables contain an electronic marker.
Video is not guaranteed
A USB-C hub with HDMI only works when the source port supports a compatible display mode such as DisplayPort Alt Mode or Thunderbolt. A data-and-charge-only port cannot be turned into display output by the hub.
Data speed varies
USB 2.0, 5Gbps, 10Gbps, USB4 and Thunderbolt products can all use USB-C. Transfer speed is limited by the slowest part of the chain: device port, hub, cable and storage device. Check exact specifications when speed matters.
Docking station power
A dock reserves some input power for attached USB devices, Ethernet and displays. If a 100W charger feeds a dock, the laptop may receive less than 100W. Compare the dock's upstream charging output with the laptop's required wattage.
Cable quality and length
Longer high-speed cables are harder to engineer and may support lower data rates or charging levels. Use a cable rated for the task and do not assume the cable supplied with one device is suitable for every device.
What to check
Confirm the device model, port capabilities, display resolution and refresh rate, charging wattage and peripherals. Browse TechTic's computer accessories, then send your device model if you want help checking a hub or charger.
Need help choosing?
TechTic can help you compare current options using the exact product and device model. Email support@techtic.co.za or WhatsApp 082 890 1654. Product prices and availability can change, so always check the live product page before ordering.