Difference Between USB-A and USB-C
USB-A is the traditional rectangular connector that only fits one way. USB-C is the newer, smaller, oval connector that is reversible. USB-C supports faster data transfer, higher power delivery, and can carry video signals. USB-C is becoming the universal standard.
Key Takeaways
- USB-A has been the standard USB connector since the 1990s.
- USB-C refers to the connector shape; the speed and features depend on the underlying protocol (USB 2.
- Not all USB-C cables support all features; charging cables may not support high-speed data or video.
Explanation
USB-A has been the standard USB connector since the 1990s. Its rectangular shape with internal plastic insert means it only fits one way. USB-A ports are still common on computers and chargers for backward compatibility with older devices.
USB-C is a newer connector standard introduced in 2014. Its symmetrical oval design allows insertion either way. Beyond convenience, USB-C supports USB 3.1/3.2/4 speeds, USB Power Delivery for high-wattage charging, and alternate modes like DisplayPort and Thunderbolt.
USB-C is increasingly required by regulation in many regions for phones and small electronics. New laptops, tablets, and phones predominantly use USB-C. Many devices are transitioning to USB-C only, though adapters remain available.
Things to Know
- USB-C refers to the connector shape; the speed and features depend on the underlying protocol (USB 2.0, 3.0, 4, Thunderbolt).
- Not all USB-C cables support all features; charging cables may not support high-speed data or video.
- USB-A to USB-C cables allow connecting newer devices to older computers and chargers.