A USB to TTL serial adapter cable with an embedded PL2303 converter chip. This 1-metre cable provides a simple way to add serial communication to your projects, connecting a standard USB-A port to 3.3V TTL-level UART signals via a 4-pin 2.54mm header.

Ideal for accessing serial consoles on single-board computers like Raspberry Pi, debugging microcontrollers, or communicating with any device that uses TTL-level serial.

Key Features

• PL2303 Converter Chip – Reliable USB to UART bridge with wide OS support
• 3.3V TTL Logic – TX and RX lines operate at 3.3V, safe for modern microcontrollers
• 5V Power Output – VCC pin provides 5V from USB for powering target devices
• 2.54mm Pin Header – Standard pitch for easy breadboard and header connections
• 1m Cable Length – Generous length for comfortable bench use

Pinout

• Red – VCC (5V)
• Black – GND
• Green – TXD (3.3V TTL, connects to target RXD)
• White – RXD (3.3V TTL, connects to target TXD)

Compatibility

• Windows XP, 7, 8, 8.1, 10 and later
• macOS and Linux (driver support may vary)

Ideal For

• Raspberry Pi and single-board computer serial consoles
• Microcontroller UART debugging and programming
• Serial communication with GPS modules, sensors, and other TTL devices
• Embedded system development and diagnostics

Package Contents

• 1× USB to TTL 4-pin serial cable (1m)