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Waveshare Industrial USB to RS485 Converter (2 units)
Industrial Control (B2B)

Waveshare Industrial USB to RS485 Converter (2 units)

4.6(77 reviews)

$25.99reference price

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Best for

Configuring, programming, or monitoring an RS485 bus directly from a PC — not for bridging to an Ethernet network (for that, the gateway above).

  • USB
  • FT232RL
  • 2 units

What is it and what's it for?

It's a "plug adapter" for the RS485 language: it converts your computer's USB port (which industrial machines don't understand) into the RS485 language that many industrial devices do speak — like a power adapter for when you travel to a country with a different outlet type.

Real-world use cases

At home

A smart-home hobbyist building their own RS485 sensor system can use this converter to program and monitor the bus directly from their computer.

In a business or workshop

A maintenance technician needs to connect their laptop to a plant's RS485 bus to diagnose or reconfigure a device — this converter is the tool that makes that connection possible.

How to avoid buying the wrong one

  • This does NOT connect to an Ethernet network — it's direct USB to a single computer. If you need to connect the bus to a network, the RS232/485/422 gateway in this ranking is the right choice.
  • Uses the FT232RL chipset, a recognized and reliable chip — avoid generic clones that often cause driver problems.
  • Comes as 2 units: worth having a spare if your work depends on this tool.

The investment takeaway

The FT232RL chipset (instead of a cheap no-name clone) avoids the headache of drivers that won't install or connections that drop on their own — for a diagnostic tool you'll use often, reliability is worth more than saving a few dollars.

Waveshare Industrial USB to RS485 Converter (2 units)

$25.99reference price

See current price on Amazon

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