A few clicks away from a working USB Serial device

High-end macOS drivers for your PL-2303, CH341 and CP2102 USB to Serial devices

Sunday, we offer a special discount of 42%. Buy the driver for €6.90 instead of €11.98!

Note: Driver only works with MacOS 10.15 Catalina and older. Newer versions like MacOS Big Sur and Monterey are not supported! Consider buying an FTDI based dongle!

The best driver

Have you been struggling to get your serial device to work? This high-end driver will end your troubles and gets you your working device!

No quick hacks, or security bypasses to get the driver operating.

Download the free Serial Detect App to check if your device is supported.

  • Reliable data transfer
  • Rich RS-232 feature support

Easy installation

Time-saving hassle-free installation via package installer. No need to use the Terminal.

  • Click through installation
  • Officially Signed and notarized KEXTs
  • Over 150 supported USB serial devices
Download Serial Detect App Buy now for only €11.98

Works with macOS 10.15 Catalina. Catalina and Mojave drivers are notarized. Legacy drivers (signed) for OS X 10.13, 10.12. 10.11 , 10.10/10.9, 10.8, 10.7, 10.6, 10.5 (PowerPC) are also available.

I installed the driver and is working with my Replica Arduino's! Thanks Very Much!

Chris

Did you know that USB to Serial adapters are also embedded in coffee machines, and routers?

Our driver helps you to connect your equipment

You will find USB to Serial chips in car tuning tools, routers, coffee machines, gps trackers, measurement tools, audio effects and so on.

We preloaded our drivers with over 150 personalities to make your device plug'n'play.

To name a few supported brands: iKross, JBtek, Prolific, TRENDnet, NooElec, SMAKN, DROK, Sabrent, Waveshare, IOData, XIE, Winchiphead, KEDSUM, HiLetgo, XIE, PWOW, Kangnice, ZCL, JBTek and Silicon Labs

Full implementation of the CH-340, CH-341, PL2303, CP2102 chips

Still owning old equipment, working on 7-bit, having Cisco routers depending on the break-signal, or use the handshake lines to control some relays. Our drivers support it.

We offer rich RS-232 feature support:

  • Baudrates up to 230400
  • Data bits (5, 6, 7, 8)
  • Stop bits (1, 2)
  • Hardware handshaking (CTS/DSR)
  • Software handshaking (XON/XOFF)
  • Handshake line control (CTS, DTR, RI, DCD, DSR)
  • Odd, even parity settings
  • Sending break signal
Download Serial Detect App Buy now for only €11.98

Works with macOS 10.15 Catalina. Catalina and Mojave drivers are notarized. Legacy drivers (signed) for OS X 10.13, 10.12. 10.11 , 10.10/10.9, 10.8, 10.7, 10.6, 10.5 (PowerPC) are also available.

I purchased your driver and I am happy to report that it solves both issues I saw with the other drivers. So, great job!

Thomas

People like our USB to Serial drivers because it saves them their weekends

Do other drivers get fan mail?

Thanks. I love your driver software! The Prolific driver failed badly – I think it could not handle 7-bit data. I'm now happy. Thank you very much!
The driver works like a charm!
Works great under Parallels Windows 7 Virtual Machine.
Now the USB device works perfectly! You have saved my weekend!
I should have bought it earlier!
This is awesome! I can finally program my ESP8266 NodeMCU.
WOW... you guys ROCK!
The installer is awesome and easy to use, thank you!
Thanks! Works flawlessly, saved my night
w00t!!!! Thank you! It works and I can now configure my network device. Thank you!

We take care of all the tricky macOS and USB Serial chips for you

Started in 2006 as an open source project to enable Atmel AVR programming for OS X, helping thousands of users. We now offer well maintained drivers for the CP2102, CH341 and PL2303 chips.

The drivers are built on years of driver programming experience and customer feedback.

Instead of making you looking for tweaks and workarounds, it simply does the right thing.

  • Reliable data transfer, and no garbage data, so programming Arduino's, AVRs, ESP8266 just works
  • Officially signed kexts, so it is not necessary to make your macOS insecure via boot-args

    • Long term continuity as our drivers are based on the newest IOUSBHost stack API's of macOS.

  • …and many more things you thankfully never have to think about
Download Serial Detect App Buy now for only €11.98

Works with macOS 10.15 Catalina. Catalina and Mojave drivers are notarized. Legacy drivers (signed) for OS X 10.13, 10.12. 10.11 , 10.10/10.9, 10.8, 10.7, 10.6, 10.5 (PowerPC) are also available.

It works perfectly in my application: reading light levels from a Minolta digital photometer

Prof Mark Georgeson