USB B Male Pinout

1 2 3 4 5 USB-B
Pin 1: Red
VBUS (+5V)
Pin 2: White
Data- (D-)
Pin 3: Green
Data+ (D+)
Pin 4: Black
Ground (GND)
Pin 5: Shell
Shielding

About USB Type-B

USB Type-B is a square-shaped connector with slightly beveled corners on the top, commonly used for peripheral devices like printers, scanners, and external hard drives. It was designed to prevent the connection of two host devices to each other, which could potentially cause damage.

The USB-B connector is compatible with USB 1.1, USB 2.0, and some variants of USB 3.0 (which adds additional pins and is usually colored blue). The design helps ensure that cables are connected in the correct orientation.

Key features include:

  • Four-pin design identical in function to USB-A
  • Robust construction intended for devices that aren't frequently unplugged
  • Standard 5V power delivery with current varying by USB version
  • Trapezoidal shape to prevent incorrect insertion
  • Generally found only on the device end of a connection (never on a host computer)
USB Version Max Data Rate Common Applications
USB 1.1 12 Mbps Older printers, scanners
USB 2.0 480 Mbps Printers, scanners, external disk drives
USB 3.0 5 Gbps External hard drives, high-speed scanners