We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black USB-A plug to four Dupont leads with TX and RX LEDs, 6ft cable

SMUGDESK

SMUGDESK USB to TTL UART Debug Cable PL2303 3.3V 6ft TX/RX LED

SKU CH-PEQY-JD6K2

A 6 ft USB-to-TTL debug cable with genuine PL2303 chip, fixed 3.3 V output, TX/RX LEDs and USB 2.0 speeds up to 12 Mbps for firmware flashing across Windows, Mac and Linux

  • Genuine PL2303 chip enables stable USB 2.0 to UART conversion up to 12 Mbps
  • Fixed 3.3 V output with VCC/GND/TX/RX leads connects MCUs without level shifting
  • TX and RX LEDs show real-time data flow for quick wiring checks
  • Drivers for Windows 11, 10, 8, 7, XP, Mac and Linux simplify setup
  • 6-foot shielded cable with Dupont terminals suits bench debugging and embedded projects

USB to TTL UART debug cable for embedded development

The SMUGDESK cable uses a genuine PL2303 chip to convert USB 2.0 signals to 3.3V TTL levels. It targets engineers and hobbyists who flash firmware, debug microcontrollers or communicate with ESP modules and development boards.

Fixed 3.3V output with flying leads and status LEDs

Four dupont leads provide VCC, GND, TX and RX connections directly to target hardware without level-shifting circuitry. TX and RX indicator LEDs show real-time data activity so wiring faults can be spotted quickly during bench work.

Shielded 6ft cable for cross-platform debugging

The shielded anti-interference cable supports adjustable baud rates from 5bps up to 12Mbps. Official drivers cover Windows 11, 10, 8, 7, XP, Mac OS and mainstream Linux distributions for driver installation on legacy and current systems.

Highlights

  • Genuine PL2303 chip enables stable USB 2.0 to UART conversion up to 12 Mbps
  • Fixed 3.3 V output with VCC/GND/TX/RX leads connects MCUs without level shifting
  • TX and RX LEDs show real-time data flow for quick wiring checks
  • Drivers for Windows 11, 10, 8, 7, XP, Mac and Linux simplify setup
  • 6-foot shielded cable with Dupont terminals suits bench debugging and embedded projects

Specifications

No published specifications for this item yet.

Questions about this item

What does the USB 2.0 interface cap the baud rate at in practice?

The cable supports adjustable baud rates from 5 bps up to 12 Mbps over USB 2.0.

What physical connections does the 3.3 V cable need to fit a target board?

It uses a 4-pin Dupont female header carrying VCC, GND, TX and RX for direct MCU connection.

How is the PL2303 cable installed, and what step do people often miss?

Install the official driver for Windows 11, 10, 8, 7, XP, Mac or Linux, then verify the COM port appears in Device Manager before opening a terminal.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.