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Black USB-to-audio-jack serial cable, six feet long

Werleo

Werleo TTL-232R-5V-AJ 3.5mm audio jack USB converter 6 feet

SKU CH-F6AZ-SKQ9N

A USB-to-serial cable with an FT232 chip and 3.5 mm audio jack carrying TX, RX and ground over 6 feet

  • FT232 chip provides reliable USB-to-serial conversion
  • 5 mm jack uses standard Tip-TX, Ring-RX, Sleeve-GND pinout
  • 6-foot cable gives flexible device placement
  • Weighs only 80 g for easy portability
  • Works with Windows 7 through 11, Mac OS and Linux

Target users

The Werleo TTL-232R-5V-AJ cable connects a 3.5 mm audio jack UART device to a USB host. It is intended for engineers, hobbyists and technicians who need a simple serial link for debugging, firmware updates or device configuration.

Thermals noise and power

The adapter draws power directly from the USB port and uses an FT232 chip for the conversion. No active cooling is present and the cable runs silently during normal data transfer.

Build and connectors

A six foot cable weighing about 80g terminates in a standard 3.5 mm jack wired Tip-TX, Ring-RX, Sleeve-GND. The moulded strain relief and flexible jacket withstand repeated bench use while keeping the pinout accessible for quick probing.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 65% of the 1,430 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 3.5mm audio jack end to my device and which pinout step is often missed?

Plug the 3.5mm jack into the target device's serial port. The tip carries TX, the ring carries RX and the sleeve is GND; a common mistake is swapping the tip and ring connections.

What part of this cable is most likely to need replacement after extended use?

The 3.5mm plug and the USB connector see the most physical stress from repeated insertion and cable flex, so those ends tend to wear out before the FT232 chip or the cable jacket.

What is the first limitation I will hit when running this adapter continuously at high baud rates?

The 6-foot cable length and the FT232 chip's 5V signalling set the practical limit; signal integrity degrades on long runs at the highest sustained baud rates before the chip overheats.

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