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Four small red USB-C to TTL adapter boards, 43 by 17 mm, 2.54 mm pin headers

KEHIPI

KEHIPI FR232RL Type-C USB to TTL Adapter 4pcs Red 3.3V/5.5V

SKU CH-Q54J-FPVSS

Four USB-C to TTL serial adapters with FT232RL chip, 3.3V or 5.5V operation and 500mA self-restore fuse

  • Four adapters included for multiple projects
  • FT232RL chip integrates oscillator and EEPROM
  • 3V or 5.5V selectable operating voltage
  • 500mA self-restore fuse protects connected hardware
  • Type-C USB with 2.54mm pin pitch

Four-Pack USB-C Serial Adapters

This set contains four FR232RL modules that convert a USB-C port to a 3.3 V or 5.5 V TTL serial link. Each board uses an integrated FT232R chip with a built-in 500 mA self-restoring fuse. The red PCBs expose DTR, RXD, TXD, VCC, CTS and GND pins on a 2.54 mm pitch for breadboard use.

Check Voltage And OS Compatibility

Verify that your target microcontroller runs at 3.3 V or 5 V logic to match the adapter’s selectable supply. The driver package supports Windows 95 through Windows 7 in both 32-bit and 64-bit editions but does not support Windows 8. Confirm your development machine runs a compatible operating system before ordering.

Low Heat And Silent Operation

The FT232R integrates the oscillator, EEPROM and USB termination resistors, so the module draws minimal power and produces no audible noise. The on-board 500 mA fuse limits current during a short circuit and resets automatically once the fault clears. In normal use the board runs cool without a heatsink or fan.

Highlights

  • Four adapters included for multiple projects
  • FT232RL chip integrates oscillator and EEPROM
  • 3V or 5.5V selectable operating voltage
  • 500mA self-restore fuse protects connected hardware
  • Type-C USB with 2.54mm pin pitch

Specifications

BrandAITRIP
ModelFR232RL

Questions about this item

What comes in the package and is anything extra needed?

The box contains four FR232RL red Type‑C to TTL adapter modules. No additional parts are required for basic UART use; the FT232R chip integrates the oscillator, EEPROM and USB matching resistors.

How do I choose between the 3.3 V and 5.5 V operating voltages?

Each module can be powered from the USB port at either 3.3 V or 5 V. Select the voltage that matches your target board — 3.3 V for 3.3 V logic devices, 5 V for 5 V logic — using the on‑board jumper or solder bridge.

What does the 500 mA self‑restore fuse mean when the adapter is plugged into a laptop?

The built‑in 500 mA polyfuse limits current drawn from the host USB port. If a short or overload occurs on the VCC pin, the fuse trips and automatically resets once the fault is cleared, protecting the laptop port.

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