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
USB to TTL serial adapter cable with 3.5mm audio jack plug

Ruth's sister

Ruth's sister International Power Cord 3.3V 3.5mm Audio Jack

SKU CH-181R-80QTC

A USB to TTL serial adapter with FTDI chip converts to 3.3 V logic levels and terminates in a 3.5 mm stereo audio jack

  • FTDI chip enables reliable serial communication
  • 3 V logic level matches low-voltage targets
  • 5 mm stereo jack simplifies device connection
  • 6 ft cable length gives flexible placement

USB-TTL serial adapter with 3.5 mm jack

This cable integrates an FTDI chip to convert a USB port into a 3.3 V TTL serial link ending in a stereo 3.5 mm audio plug. It suits developers and engineers debugging embedded boards or routers that expose a console through a 3.5 mm header. The 6 ft length gives bench flexibility without excess slack.

Replaces bare header wires or proprietary dongles

Use this when a target device provides a 3.5 mm serial header and you need a reliable, driver-supported USB connection. It is not for equipment that requires RS-232 voltage levels, DB-9 connectors, or 5 V logic signalling.

How it compares

Measured against everything we stock in Worldwide Power Cords, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 80% of the 1,208 comparable items (median $9.99).

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

Specifications

No published specifications for this item yet.

Questions about this item

Does the 3.5 mm stereo plug fit my target device's serial port?

The cable ends in a 3.5 mm stereo audio jack that carries the 3.3 V TTL UART signals; verify your device uses the same tip-ring-sleeve pin-out before connecting.

Which drivers are needed for the FTDI chip and what common step is missed?

Install the FTDI VCP drivers for your OS, then confirm the COM port appears in Device Manager; the step most people skip is matching the serial terminal baud rate to the device setting.

More in Worldwide Power Cords

Similar items