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SMUGDESK USB to TTL UART serial cable with PL2303 chip, 3.3V output, TX RX LEDs, 3FT length

SMUGDESK

SMUGDESK USB to TTL UART Serial Cable PL2303 3.3V TX RX LED 3FT

SKU CH-2G2V-R7SF3

USB-to-TTL serial cable with PL2303 chip, fixed 3.3V output, TX/RX LEDs and 3-foot shielded cable for embedded debugging across Windows 10, 11, Mac and Linux

  • Authentic PL2303 chip ensures stable USB-UART conversion for embedded programming
  • Fixed 3.3V output connects microcontrollers and ESP modules without level shifting
  • TX/RX LED indicators show live data traffic for quick wiring troubleshooting
  • Works with Windows 10, 11, Mac OS and common Linux distributions
  • 3-foot shielded cable with durable dupont terminals suits DIY and lab use

Embedded development cable

The SMUGDESK USB to TTL UART cable uses a genuine PL2303 chip to provide stable serial conversion for engineers, hobbyists and technicians working with microcontrollers, ESP modules and router firmware. It connects directly to 3.3V logic boards without extra level-shifting hardware. The three-foot shielded lead suits bench debugging and DIY electronics projects.

Fixed 3.3V logic level

The cable delivers a fixed 3.3V output through four dupont wires covering VCC, GND, TX and RX, so it drives compatible single-chip targets straight from the port. It handles a wide baud-rate range for programming and debug sessions but cannot supply 5V logic or higher current loads that some older equipment expects. No internal voltage regulation for other levels is present.

LED status and driver support

TX and RX LEDs give immediate visual feedback on data flow, helping spot wiring mistakes during bring-up. The PL2303 driver runs on Windows 11, 10, 8, 7, XP, Mac OS and common Linux distributions, letting the same cable move between development machines. The shielded cable resists interference during normal bench use.

Highlights

  • Authentic PL2303 chip ensures stable USB-UART conversion for embedded programming
  • Fixed 3.3V output connects microcontrollers and ESP modules without level shifting
  • TX/RX LED indicators show live data traffic for quick wiring troubleshooting
  • Works with Windows 10, 11, Mac OS and common Linux distributions
  • 3-foot shielded cable with durable dupont terminals suits DIY and lab use

Specifications

No published specifications for this item yet.

Questions about this item

Will the 3.3V output on this PL2303 cable work with my older 5V microcontroller boards?

The cable provides a fixed 3.3V output, so it is designed for 3.3V logic devices. You would need a separate level shifter to interface safely with 5V microcontroller boards.

How can I confirm the PL2303 chip is communicating correctly after I plug it in?

The built-in TX and RX LED indicators flash when data is transmitted or received, giving immediate visual confirmation that the serial link is active.

Does the package include the dupont connectors for VCC, GND, TX and RX, or must I buy them separately?

The 4-core dupont wires for VCC, GND, TX and RX are permanently attached to the cable, so no separate connectors are required.

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