USB-C cables may look alike, but their capabilities can differ sharply. A comparison by product-engineering company Lumafield used CT scanning to examine the components inside several cables, including a budget model and Apple's Thunderbolt 4 Pro cable.
The $5.59 NiceTQ cable was rated for 60-watt charging and advertised data speeds of up to 10 Gbps. Lumafield's examination found a simpler construction: four active pins, with wires connected directly to the connector and no shielding or circuit board. The cable's observed data rate was about 480 Mbps.
What the premium cable includes
Apple's $129, 1.8-metre Thunderbolt 4 Pro cable is designed for more demanding use. It supports data transfer up to 40 Gbps and charging up to 100 watts. Lumafield found a more complex interior, including shielding, a multi-layer circuit board and additional measures to protect the connections.
That engineering helps explain the difference between the two cables, but it does not establish that Apple's model offers the best value. Other certified Thunderbolt cables may provide comparable capabilities for less. Apple also sells a shorter Thunderbolt 5 cable for $69, with newer performance specifications.
Choose for the task
For routine phone charging or occasional file transfers, a properly rated USB-C cable is generally sufficient. Higher-performance cables are more relevant for fast external storage, multiple displays and other equipment that requires greater bandwidth or power.
The key is to check a cable's supported charging and data standards rather than judging by appearance or price alone. As devices demand faster connections, clear specifications will help people choose cables that match their needs without paying for unused capabilities.
