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Small rectangular USB-to-TTL adapter in clear protective case with jumper pins visible

DSD TECH SH-U09C2 USB to TTL Adapter FTDI FT232RL 1.8V 3.3V 5V data converter

SKU CH-4W36-R1KCS MPN SH-U09C2

A USB-to-TTL adapter with an FTDI FT232RL chip, jumper-selectable 1.8V, 3.3V and 5V logic levels and a static-shielding case for firmware flashing and UART debugging on Windows, Linux and Mac

  • Product colorMulticoloured
  • Product dimensions2.54 in × 4.318 in × 8.89 in
  • Product weight0.2 oz
  • FTDI FT232RL chip ensures reliable serial communication for debugging and programming
  • Jumper-selectable 1.8V 3.3V 5V logic levels match diverse target devices
  • Transparent protective case prevents static interference and accidental short circuits
  • Compatible with Windows 7 8 10 Linux and Mac OS for broad system support
  • Supports firmware flashing router recovery ESP8266 programming and UART interfacing

USB-to-TTL adapter with FTDI FT232RL

This adapter uses an original FTDI FT232RL chip to convert USB signals to UART for debugging and programming. It suits engineers, programmers and hobbyists who work with routers, ESP8266 modules, GPS units or other UART devices. The jumper-selectable logic levels let you match 1.8V, 3.3V or 5V targets without extra hardware.

Thermals noise and power draw

The board draws power directly from the USB port and runs cool during typical flashing or debug sessions. A transparent case shields the circuitry from static discharge and accidental shorts while you handle it. No fan or active cooling is required for normal operation.

Sustained load behaviour

The FT232RL maintains stable communication at up to 3 Mbps during long firmware updates or continuous data logging. Driver support across Windows 7, 8, 10, Linux and Mac OS keeps the link reliable over extended periods. The protective case prevents intermittent faults caused by board flex or contamination.

How it compares

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Price $20.99
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Specifications

Product
Brand nameDSD TECH
Model nameSH-U09C2
Part numberSH-U09C2
Product colorMulticoloured
Size & build
Product dimensions2.54 in × 4.318 in × 8.89 in
Product weight0.2 oz

Questions about this item

How do I install the SH-U09C2 adapter and set the correct logic level for my target device?

Plug the adapter into a USB port, install the FTDI driver on Windows 7, 8, 10, Linux or Mac OS, then move the onboard jumper to match the required 1.8V, 3.3V or 5V TTL level before connecting the Dupont cable to the UART pins.

What maintenance or replacement will the SH-U09C2 need over time?

The FT232RL IC and jumper are solid-state with no moving parts; keep the transparent case fitted to block static discharge and accidental shorts, and the supplied Dupont cable can be swapped if its connectors wear out.

What is the first limit I will hit during sustained high-speed transfers with the SH-U09C2?

The FT232RL IC tops out at 3 Mbps, so continuous bulk endpoints will saturate at that throughput before any thermal or driver bottleneck appears.

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