USB Cable Parts and Their Functions

USB Cable Parts and Their Functions

A USB (Universal Serial Bus) cable is used for data transfer and power delivery between electronic devices. The image provides a breakdown of a standard USB cable’s internal wiring, showing the different colored wires and their functions.

1. USB Cable Components

– Shielding (Outer Metal Covering):
– Provides protection from electromagnetic interference (EMI).
– Not connected to the USB device directly.

– Four Main Wires Inside the Cable:
1. Red Wire (USB Vcc / +5V):
– Carries +5V DC power.
– Used to power connected devices.
2. White Wire (USB Data+ / D+):
– Transfers data signals in the positive direction.
– Works with the green wire to send and receive digital signals.
3. Green Wire (USB Data- / D-):
– Transfers data signals in the negative direction.
– Works together with the white wire for balanced data transmission.
4. Black Wire (GND / Ground):
– Serves as the ground connection for the circuit.
– Completes the electrical path between the USB device and the power source.

2. How a USB Cable Works
– When a USB device (such as a flash drive or phone) is plugged in, power (+5V) flows through the red wire, while data is transmitted through the white and green wires.
– The black (ground) wire ensures a stable connection and prevents voltage fluctuations.
– Shielding protects against electromagnetic interference (EMI), ensuring smooth data transfer.

3. Common USB Types & Their Pin Configurations
– USB Type-A: Standard rectangular connector with 4 pins (Vcc, D+, D-, GND).
– USB Type-B: Square connector used in printers, has 4 or more pins.
– USB Type-C: Reversible connector with more pins for high-speed data and power delivery.

4. Applications of USB Cables
✔ Charging smartphones, tablets, and gadgets.
✔ Data transfer between computers and external devices.
✔ Connecting peripherals like keyboards, mice, and printers.
✔ Powering low-voltage electronics (e.g., Arduino, Raspberry Pi).

Disclaimer – This post has only been shared for an educational and knowledge-sharing purpose related to Technologies. Information was obtained from the source above source. All rights and credits are reserved for the respective owner(s).

Keep learning and keep growing

Source: LinkedIn

Credits: Mr. Md. Tariqul Islam Rubel