Data Cable Interface Types Explained

USB-A Interface
Features: Rectangular design, 4 pins, compatible with USB 1.0-3.2 protocols, widely used in computers, chargers, and other devices.
Application Scenarios: Connecting U disks, external hard drives, keyboards, mice, and other peripherals, or for charging older Android phones (requires a Micro-USB adapter).

USB-B Interface
Features: Square design, 2-5 pins available, commonly found in printers, scanners, audio interfaces, and other devices.
Variants: Mini-USB (smaller), Micro-USB (ultra-small), the latter was once standard for Android phones, but has now been replaced by Type-C.

Type-C Interface
Features: Symmetrical design, 24 pins, supports USB 4.0 protocol, transmission speed up to 40Gbps, compatible with PD fast charging (up to 100W), video output (such as 4K@60Hz), and data transmission (such as 10Gbps).
Advantages: Reversible plug, high-speed transmission, strong compatibility, has become the mainstream interface, suitable for mobile phones, tablets, laptops, and other devices.

Lightning Interface
Features: 8-pin design, only used for Apple devices, supports USB 2.0 transmission (480Mbps) and 20W fast charging.
Limitations: Non-universal interface, requires purchasing original Apple or third-party certified cables, transmission speed and compatibility are weaker than Type-C.