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  • Waveshare USB to RS232/485 Serial Converter, Onboard Original FT232RNL Chip, Features More Stable Transmission, Suitable for Multiple Devices, Compatible with Mac/Linux/Android/Win11/10/8.1/8/7, etc

Waveshare USB to RS232/485 Serial Converter, Onboard Original FT232RNL Chip, Features More Stable Transmission, Suitable for Multiple Devices, Compatible with Mac/Linux/Android/Win11/10/8.1/8/7, etc

4.7 out of 5 stars (128)
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Purchase options and add-ons

About this item

  • Adopts original FT232RNL chip, fast communicating, stable and reliable, better compatibility
  • Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
  • Onboard self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, improve shock proof performance
  • Onboard RS232/485 communication switching circuit, configured by switch
  • Onboard 120R terminal resistor on the RS485 interface, enabled/disabled via switch
  • 3 LEDs for indicating the power and transceiver status. Adopts ABS protection case, compact size, portable and easy to use, cost-effective
› See more product details

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This item: Waveshare USB to RS232/485 Serial Converter, Onboard Original FT232RNL Chip, Features More Stable Transmission, Suitable for Multiple Devices, Compatible with Mac/Linux/Android/Win11/10/8.1/8/7, etc
$26.89
Get it Apr 8 - 28
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Ships from and sold by waveshare.
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Product Description

Selection Table

USB TO RS485

USB TO RS232-485

USB TO RS485 (B)

USB TO RS485/422

USB TO RS232/485/TTL

USB TO 4CH RS485

Customer Reviews
4.6 out of 5 stars 366
4.7 out of 5 stars 128
4.6 out of 5 stars 102
4.8 out of 5 stars 27
4.6 out of 5 stars 297
4.9 out of 5 stars 37
Chip Model
FT232RNL FT232RNL CH343G FT232RNL FT232RL FT232RL
Host Port
USB USB USB USB-B USB-B USB-B
Device Port
RS485 RS232/485 RS485 RS485/422 RS232/485/TTL RS485
Bauda rate
300bps ~ 921600bps 300bps ~ 921600bps 300bps ~ 3Mbps 300bps ~ 3Mbps 300bps ~ 921600 bps 1200bps ~ 460800bps
Led Indicators
PWR/TXD/RXD PWR/TXD/RXD PWR/TXD/RXD PWR/TXD/RXD PWR/TXD/RXD PWR/ACT/RXD/TXD
Temperature Range
-15℃ ~ 70℃ -15℃ ~ 70℃ -15℃ ~ 70℃ -15℃ ~ 70℃ -15℃ ~ 70℃ -40 ~ 85℃
Operating System
Mac, Linux, Android, Windows Mac, Linux, Android, Windows Mac, Linux, Android, Windows Mac, Linux, Android, Windows Mac, Linux, Android, Windows Mac, Linux, Android, Windows
Transmission Distance
：5；R485：1200（M） USB:5;RS232:15; RS485:1200 MAX ：5；R485：1200（M） USB:5M;RS485/232:1200M;(MAX) — ：5；R485：1200（M）
USB TO RS232-485
USB TO RS232-485
USB TO RS232-485
USB TO RS232-485
USB TO RS232-485
USB TO RS232-485

Product details

  • Parcel Dimensions ‏ : ‎ 10.69 x 7.8 x 3.3 cm; 82 g
  • Manufacturer ‏ : ‎ Waveshare
  • ASIN ‏ : ‎ B0CTK7YZQK
  • Item model number ‏ : ‎ USB TO RS232-485
  • Customer Reviews:
    4.7 out of 5 stars (128)

Product information

Technical Details

Brand ‎Waveshare
Manufacturer ‎Waveshare
Model ‎USB TO RS232-485
Model Name ‎USB TO RS232/485
Part Number ‎USB TO RS232-485
OS ‎Windows 11, 10, 8.1, 8, 7, Mac OS, Linux, Android
Hardware interface ‎USB
Compatible Devices ‎Multiple devices including personal computers, laptops and mobile devices (Mac, Linux, Android, Windows 11/10/8.1/8/7)
Mounting Hardware ‎USB TO RS232/485
Batteries included ‎No
Batteries Required ‎No
Manufacturer ‎Waveshare
Item model number ‎USB TO RS232-485
Parcel Dimensions ‎10.69 x 7.8 x 3.3 cm; 82 g
ASIN ‎B0CTK7YZQK

Additional Information

Date First Available Jan. 30 2024
Customer Reviews
4.7 out of 5 stars (128)

4.7 out of 5 stars
鶹 Rank

Feedback

Waveshare USB to RS232/485 Serial Converter, Onboard Original FT232RNL Chip, Features More Stable Transmission, Suitable for Multiple Devices, Compatible with Mac/Linux/Android/Win11/10/8.1/8/7, etc

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Customer reviews

4.7 out of 5 stars
128 global ratings

Customers say

The input output card works well with Windows and operates seamlessly with Raspberry Pi. Customers find it plug and play with straightforward wiring. Users describe it as a high quality USB to serial device and consider it a great device overall.
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22 customers mention functionality, 21 positive, 1 negative
Customers report that the input output card works flawlessly and functions seamlessly with Raspberry PI. It works with every application and performs the same on different carts. Users successfully use it with Windows 11 machines and find it works perfect for communication with electric golf carts.
6 customers mention ease of use, 6 positive, 0 negative
Customers find the input output card easy to use with plug and play functionality that makes wiring straightforward. The RS232 dongle connects easily and allows users to connect to devices like golf carts.
6 customers mention quality, 6 positive, 0 negative
The input output card is a high quality USB to serial device that serves as a great modbus adapter and fantastic USB to serial converter. Customers find it to be a great device with quality connectors as described.
Decent USB-A to RS232/485 serial converter, seems well-constructed, works as expected
4 out of 5 stars
Decent USB-A to RS232/485 serial converter, seems well-constructed, works as expected
Well, there isn't much to say about this USB-A to RS232/485 serial converter except it seems reasonably well made and works as expected without issues. It's fairly compact and portable although slightly lager versions of this do support more protocols and features but it really depends on your individual needs and requirements. A little screw driver and a USB-A/B extension cable are also provided should you have the need for it (i.e. for tight places where the adapter might not fit properly). Driver might be required (provided on the official website) but it's completely plug'n'play for Win11 without any manual installation or user intervention. It works just fine without issues with YABE (OSS) which is great. ≡ Value All things considered, this is a decent USB-A to RS232/485 serial converter that seems reasonably well made and works as expected without issues. It's somewhat reasonably priced at $25 for what it provides and its overall build quality, versatility, and performance. You can knock a few bucks off if you care to shop around though.
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Top reviews from Canada

  • Nikki
    5.0 out of 5 stars Good build and good quality
    Reviewed in Canada on May 19, 2024
    鶹 Vine Customer Review of Free Product( What's this? )
    I have ordered from Waveshare in the past and have been impressed enough with their consistent quality that I now refer to them in my regular list of 鶹 sellers.

    This adapter allows me to integrate older equipment with technically obsolete interfaces. I can opt between RS232 and RS485 with a glide switch. No drivers are required; I used it with Windows 11 with no drivers though drivers are available from Waveshare. It's very easy and straight forward to use with a basic build and I like that a terminating resistor is onboard.

    All said and done this is a good adaptor for a fair price.
    Helpful
     Report
  • SMB
    4.0 out of 5 stars Decent USB-A to RS232/485 serial converter, seems well-constructed, works as expected
    Reviewed in Canada on April 20, 2024
    鶹 Vine Customer Review of Free Product( What's this? )
    Well, there isn't much to say about this USB-A to RS232/485 serial converter except it seems reasonably well made and works as expected without issues. It's fairly compact and portable although slightly lager versions of this do support more protocols and features but it really depends on your individual needs and requirements.

    A little screw driver and a USB-A/B extension cable are also provided should you have the need for it (i.e. for tight places where the adapter might not fit properly). Driver might be required (provided on the official website) but it's completely plug'n'play for Win11 without any manual installation or user intervention. It works just fine without issues with YABE (OSS) which is great.

    ≡ Value
    All things considered, this is a decent USB-A to RS232/485 serial converter that seems reasonably well made and works as expected without issues. It's somewhat reasonably priced at $25 for what it provides and its overall build quality, versatility, and performance. You can knock a few bucks off if you care to shop around though.
    Customer image
    SMB
    4.0 out of 5 stars
    Decent USB-A to RS232/485 serial converter, seems well-constructed, works as expected

    Reviewed in Canada on April 20, 2024
    Well, there isn't much to say about this USB-A to RS232/485 serial converter except it seems reasonably well made and works as expected without issues. It's fairly compact and portable although slightly lager versions of this do support more protocols and features but it really depends on your individual needs and requirements.

    A little screw driver and a USB-A/B extension cable are also provided should you have the need for it (i.e. for tight places where the adapter might not fit properly). Driver might be required (provided on the official website) but it's completely plug'n'play for Win11 without any manual installation or user intervention. It works just fine without issues with YABE (OSS) which is great.

    ≡ Value
    All things considered, this is a decent USB-A to RS232/485 serial converter that seems reasonably well made and works as expected without issues. It's somewhat reasonably priced at $25 for what it provides and its overall build quality, versatility, and performance. You can knock a few bucks off if you care to shop around though.
    Images in this review
    Customer image Customer image Customer image Customer image Customer image Customer image
    Helpful
     Report

Top reviews from other countries

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  • Maccorin
    5.0 out of 5 stars Fonctionnel
    Reviewed in France on December 26, 2025
    Verified Purchase
    Fonctionne très bien
    Report
  • AlNour
    4.0 out of 5 stars Excellent
    Reviewed in the United Arab Emirates on March 11, 2026
    Verified Purchase
    Works flawlessly and as intended
    Report
  • RickR16
    5.0 out of 5 stars Fantastic USB to serial converter
    Reviewed in the United States on April 21, 2025
    Verified Purchase
    I had several USB to serial adapters they no longer worked with Windows 10/11. Have this a try as I had a need to connect to an older RS-232 device. On my Win 10 laptop, it was plug and play. Worked with any applications I tried, even an old version of Procomm Plus. Windows 11 desktop needed a driver installed, quickly found on the website. It again works with every application I have tried. I like it so much, I am thinking of ordering a second one to keep in the laptop bag. I had several euro block 3 pin plugs in my parts box, so I made up a few different adapters (9 pin, 25 pin, and 1/8" plug) for quick connection.

    Well worth the price.
    Report
  • Bart Clarijs
    5.0 out of 5 stars Werkt Perfect
    Reviewed in Belgium on January 18, 2026
    Verified Purchase
    Werkt out of the box
    Report
  • Roman
    5.0 out of 5 stars Bien
    Reviewed in Spain on December 13, 2025
    Verified Purchase
    Bien
    Report
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Product Summary: Waveshare USB to RS232/485 Serial Converter, Onboard Original FT232RNL Chip, Features More Stable Transmission, Suitable for Multiple Devices, Compatible with Mac/Linux/Android/Win11/10/8.1/8/7, etc

From Waveshare

4.7 out of 5 stars, 128 ratings

Customer reviews

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About this Item

  • Adopts original FT232RNL chip, fast communicating, stable and reliable, better compatibility
  • Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic
  • Onboard self-recovery fuse and protection diodes, ensure the current/voltage stable outputs, provide over-current/over-voltage proof, improve shock proof performance
  • Onboard RS232/485 communication switching circuit, configured by switch
  • Onboard 120R terminal resistor on the RS485 interface, enabled/disabled via switch
  • 3 LEDs for indicating the power and transceiver status. Adopts ABS protection case, compact size, portable and easy to use, cost-effective

Product description

FT4232HL | Stable Transmission | Multiple Devices Applicable Multi-OS Compatible | Compact Size
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