USB‑C (also called USB Type‑C) is a small, oval, reversible USB connector used on many modern phones, laptops, and other devices for charging, data transfer, and often video output.

Basic idea

• USB‑C refers to the physical plug/port shape, not a specific speed; the same connector can carry older USB speeds or newer ones like USB 3.x, USB4, or Thunderbolt, depending on the device and cable.

• The connector is reversible, so it works no matter which way you plug it in, unlike older USB Type‑A or Type‑B connectors.

What it can do

• Charging: USB‑C can deliver high power, enough to charge phones, tablets, and many laptops using standards such as USB Power Delivery.

• Data and video: The same cable can move data at high speeds and, on supported devices, send video to monitors using modes like DisplayPort or Thunderbolt over USB‑C.

How it differs from older USB

• Shape: Smaller and rounded compared with rectangular USB‑A; designed for thin devices like modern laptops and phones.

• Versatility: One USB‑C port can replace separate power, data, and display ports, reducing the number of different cables and adapters you need.